十字花科蔬菜有（（）、（）、（）芥菜（（雪里蕻、榨菜、大头菜））、芜菁、油菜、花椰菜、青花菜）油菜、瓢儿菜、辣根、罗汉菜等等
富含Vitb1-Vitb2的食物有（）
A、芦笋
B、花椰菜
C、芽苷蓝
D、辣椒
[问答题简答题]试以花椰菜花叶病毒为例说明植物病毒作为植物基因工程载体的简单原理及其存在问题。
在“DNA的粗提取”实验中，不能作为实验材料的是（ ）。 A．花椰菜B．蚕豆根尖C．新鲜猪血D．新鲜鸡血
词汇：成语：谚语
A．计算机：主机；显示器
B．水果：苹果：火龙果
C．学位：本科：研究生
D．蔬菜：菜花；花椰菜
在“DNA的粗提取”实验中，不能作为实验材料的是（）。
A.花椰菜B.蚕豆根尖C.新鲜猪血D.新鲜鸡血
芥子油甙，在（）中含量特别丰富，降解产物为具有典型的芥末、辣根、花椰菜的味道
A、豆类
B、粮谷类
C、肉类
D、十字花科蔬菜
《蒹葭》∶古体诗∶诗歌;()
A.花椰菜∶紫甘蓝∶十字花科
B.电话∶手机∶电子产品
C.老虎∶猫科∶哺乳动物
D.摩洛哥∶阿拉伯∶南非
能出现溃疡性或花椰菜样疣状赘生性心内膜炎的疾病是指（）
A、猪瘟
B、猪丹毒
C、猪肺疫
D、仔猪副伤寒
以下货物对应的商品编码品目号是'0704的有（)。
A．鲜花椰菜
B．鲜卷心菜
C．鲜西兰花
D．鲜包心生菜
浓积云进一步发展，当云顶呈现（），记为秃积雨云。
A、花椰菜形明显，云体高耸
B、出现砧状
C、出现镤状
D、顶部开始冻结，形成白色毛丝般的冰晶结构
浓积云进一步发展，当云顶呈现（）时，应判断为秃积雨云。
A、花椰菜形明显，云体高耸
B、出现砧状
C、出现镤状
D、顶部开始冻结，形成白色毛丝般的冰晶结构
翻译下列句子。
请把这些书带到学校。
Please _ these ___ _ to school.
晚饭你吃什么？
What do you __ __ _____？
那些胡萝卜在床底下。
Those __ __ _ the bed.
早饭别吃太多水果。
Don't __ __ _ fruit for breakfast.
我哥哥喜欢西红柿，但他不喜欢花椰菜。
My brother _ tomatoes. _ he ___ like broccoli.
翻译句子。
晚饭你喜欢吃什么？
________________________
他喜欢早饭吃鸡蛋。
________________________
赛跑明星们每天吃大量的健康食物。
________________________
我弟弟午饭喜欢吃花椰菜、鸡肉和苹果。
________________________
成龙是电影明星。
________________________
翻译下列句子。
我妹妹不喜欢吃花椰菜。
My sister ___ like _______.
约翰喜欢鸡肉还是水果？
___ John ___ chicken _____ fruit？
他午饭喜欢吃汉堡包。
___ lunch, he ___ _____.
至于甜点我弟弟吃冰淇淋。
My brother ___ ice cream ___ _____.
温迪吃大量的健康食品。
Wendy ___ ___ ___ ___ food. 6.—他喜欢吃梨时？ —是的，他喜欢。 —Does he ___ ___\_？ —Yes, _____ ______. 7. 午饭他吃鸡肉和西红柿。 ___ _______, he has chicken and tomatoes.
以下是有关DNA粗提取实验的阅读材料：
A．核酸极不稳定，在较为剧烈的化学、物理因素和酶的作用下很容易降解。在制备DNA时要加入DNA酶（水解DNA的酶)的抑制剂——柠檬酸钠，以除去Mg，防止DNA酶的激活。
B．核酸中的DNA和RNA在生物体内均以核蛋白（由核酸和蛋白质组成)的形式存在，DNA核蛋白在2mol/L的NaCl溶液中溶解度很高，但在0.14mol/L的NaCl溶液中的溶解度很低；而RNA核蛋白易溶于0.14mol/L的NaCl溶液。
C．用苯酚处理，可使蛋白质变性，且留在苯酚层内；在DNA溶液中加入2.5倍体积分数为95%的酒精，可将DNA分离出来。此时DNA十分黏稠，可用玻璃棒搅成团取出。
D．DNA在强酸环境下，水解产生脱氧核糖等小分子物质，它与二苯胺酸性溶液反应，能生成蓝色化合物。
E．实验材料与仪器：柠檬酸钠溶液、石英砂、0.14mol/L的NaCl溶液、2mol/L的NaCl溶液、蒸馏水、苯酚、体积分数为95%的酒精、二苯胺试剂、浓硫酸、花椰菜、研钵、烧杯、漏斗、玻璃棒、量筒、石棉网、酒精灯、吸管、试管等。
F．实验步骤：研磨得匀浆→过滤得滤液→滤液稀释6倍→离心处理得沉淀物→沉淀物再溶解→加苯酚静置后去上层清液→提取出DNA→DNA鉴定。
请阅读以上材料完成下列问题：
（1)研磨时，取10g花椰菜，加适量的石英砂和____\_、________。
（2)将滤液稀释6倍，其目的是_______。
（3)取沉淀物，置于2mL2mol/L的NaCl溶液中，使DNA核蛋白再次溶解，再加2mL苯酚充分振荡后静置，待其分层后，弃去上层的苯酚。该步骤的目的是除去__________。
（4)如何将剩余溶液中的DNA提取出来？
（5)如何证明提取的物质确实是DNA？
共用题干‘Feed Me Better'
When British TV chef Jamie Oliver launched his‘Feed Me Better'campaign in 2004 in schools in the Greenwich area of London with the aim of improving the diet of British schoolchildren,some people were skeptical about the impact it would have.Oliver's highly-publicized television campaign to improve school lunches led to dramatic changes in the meals offered to pupils in the Greenwich schools.In order to achieve his aim Oliver needed to show schools how to swap（交换）cheap processed meals , which were high in saturated fat（饱和脂肪）,salt , and sugar , for healthier options.
Now,research at the Institute for Social and Economic Research(ISER)has shown that Oliver's experiment did not only help pupils eat more healthily,it also resulted in them performing better at school in English and Science and in helping schools reduce their rates of absenteeism（缺勤）.The ISER study, carried out by Michele Belol and Jonathan James,showed"substantial"positive effects,with the performance of 1 1 -year-old pupils eating Oliver's meals improving by up to 8% in Science and by as much as 6% in English.In addition,the number of children having authorized absences for sickness since 2004 showed a 14% decrease.
The ISER study analysed the academic test results of more than 13,000 children in Greenwich between 2002 and 2007 to evaluate the impact of Oliver's healthier meals on school performance.Pupils who sat exams in 2006-2007 had been on the new diet for at least 12 months,and the researchers found that the number of pupils reaching higher levels of achievement had clearly risen.The study also compared the results of the schools in Greenwich with those of pupils of the same age in seven other London areas who did not eat the meals created by Oliver.The researchers were surprised by the speed of improvements in the Greenwich pupils.They could find no other explanation for the results except for the healthier and more nutritious meals created by Oliver.
Commenting on ISER's findings,Oliver said he felt the research proved that he was right in his decision to remove fatty processed food and replace it with nutrient-rich（营养的）foods such as coconut （椰子）,fish, and broccoli（花椰菜）.He commented that “we could see that it made them calmer and therefore able to learn”. The healthier diet has helped schoolchildren improve academically.A:Right B:Wrong C:Not mentioned
共用题干‘Feed Me Better'
When British TV chef Jamie Oliver launched his‘Feed Me Better'campaign in 2004 in schools in the Greenwich area of London with the aim of improving the diet of British schoolchildren,some people were skeptical about the impact it would have.Oliver's highly-publicized television campaign to improve school lunches led to dramatic changes in the meals offered to pupils in the Greenwich schools.In order to achieve his aim Oliver needed to show schools how to swap（交换）cheap processed meals , which were high in saturated fat（饱和脂肪）,salt , and sugar , for healthier options.
Now,research at the Institute for Social and Economic Research(ISER)has shown that Oliver's experiment did not only help pupils eat more healthily,it also resulted in them performing better at school in English and Science and in helping schools reduce their rates of absenteeism（缺勤）.The ISER study, carried out by Michele Belol and Jonathan James,showed"substantial"positive effects,with the performance of 1 1 -year-old pupils eating Oliver's meals improving by up to 8% in Science and by as much as 6% in English.In addition,the number of children having authorized absences for sickness since 2004 showed a 14% decrease.
The ISER study analysed the academic test results of more than 13,000 children in Greenwich between 2002 and 2007 to evaluate the impact of Oliver's healthier meals on school performance.Pupils who sat exams in 2006-2007 had been on the new diet for at least 12 months,and the researchers found that the number of pupils reaching higher levels of achievement had clearly risen.The study also compared the results of the schools in Greenwich with those of pupils of the same age in seven other London areas who did not eat the meals created by Oliver.The researchers were surprised by the speed of improvements in the Greenwich pupils.They could find no other explanation for the results except for the healthier and more nutritious meals created by Oliver.
Commenting on ISER's findings,Oliver said he felt the research proved that he was right in his decision to remove fatty processed food and replace it with nutrient-rich（营养的）foods such as coconut （椰子）,fish, and broccoli（花椰菜）.He commented that “we could see that it made them calmer and therefore able to learn”. The ISER is an institute that does research on pupils'performance in sport.A:Right B:Wrong C:Not mentioned
共用题干‘Feed Me Better'
When British TV chef Jamie Oliver launched his‘Feed Me Better'campaign in 2004 in schools in the Greenwich area of London with the aim of improving the diet of British schoolchildren,some people were skeptical about the impact it would have.Oliver's highly-publicized television campaign to improve school lunches led to dramatic changes in the meals offered to pupils in the Greenwich schools.In order to achieve his aim Oliver needed to show schools how to swap（交换）cheap processed meals , which were high in saturated fat（饱和脂肪）,salt , and sugar , for healthier options.
Now,research at the Institute for Social and Economic Research(ISER)has shown that Oliver's experiment did not only help pupils eat more healthily,it also resulted in them performing better at school in English and Science and in helping schools reduce their rates of absenteeism（缺勤）.The ISER study, carried out by Michele Belol and Jonathan James,showed"substantial"positive effects,with the performance of 1 1 -year-old pupils eating Oliver's meals improving by up to 8% in Science and by as much as 6% in English.In addition,the number of children having authorized absences for sickness since 2004 showed a 14% decrease.
The ISER study analysed the academic test results of more than 13,000 children in Greenwich between 2002 and 2007 to evaluate the impact of Oliver's healthier meals on school performance.Pupils who sat exams in 2006-2007 had been on the new diet for at least 12 months,and the researchers found that the number of pupils reaching higher levels of achievement had clearly risen.The study also compared the results of the schools in Greenwich with those of pupils of the same age in seven other London areas who did not eat the meals created by Oliver.The researchers were surprised by the speed of improvements in the Greenwich pupils.They could find no other explanation for the results except for the healthier and more nutritious meals created by Oliver.
Commenting on ISER's findings,Oliver said he felt the research proved that he was right in his decision to remove fatty processed food and replace it with nutrient-rich（营养的）foods such as coconut （椰子）,fish, and broccoli（花椰菜）.He commented that “we could see that it made them calmer and therefore able to learn”. The‘Feed Me Better'campaign targeted a healthier diet at schoolchildren.A:Right B:Wrong C:Not mentioned
蔬菜管理彼得莫斯是一名生产和经营蔬菜的企业家。现在，他已有50000平方米的蔬菜温室大棚和一座毗邻办公大楼，并且聘请了一批农业专家顾问。莫斯经营蔬菜业务是从一个偶然事件开始的。有一天，他在一家杂货店看到一种硬花球与花椰菜的杂交品种，他突发奇想，决定自己建立温室培育杂交蔬菜。莫斯用从祖父那里继承下来的一部分钱，雇用了一班专门搞蔬菜杂交品种的农艺专家。这个专家小组，负责开发类似于他在杂货店中看到的那些杂交品种蔬菜，并不断向莫斯提出新建议。比如，建议他开发菠生菜(菠菜与生菜的杂交品种)、橡子萝卜瓜、椽子南瓜以及萝卜的杂交品种。特别是一种柠橡辣椒，是一种略带甜味和柠橡味的辣椒。他们的开发很受顾客欢迎。同时，莫斯也用水栽法来生产传统的蔬菜，销路很好。生意发展得如此之快，以致他前段时期，很少有时间更多地考虑公司的长远发展。最近，他觉得需要对一问题着手进行决策，包括职工的职责范围、生活质量、市场与定价策略、公司的形象等等。莫斯热衷于使他的员工感到自身工作的价值。他希望，通过让每个员工参与管理，能够使其了解公司现状，调动职工的积极性。他相信，这是维持员工兴趣和激励他们的最好办法。他决定本年度12月1号9时，召开一次由每位农艺学家都参加的会议。其议程是：(1)周末，我们需要有一个农艺师在蔬菜种植现场值班，能够随叫随到；并为他们配备一台步话机，目的是一旦蔬菜突然脱水或者枯萎，可以及时找到这些专家处理紧急情况。要做的决策是：应该由谁来值班，他的责任是什么？(2)我们公司的颜色是绿色的。要做的决策是：新地毯、墙纸以及工作服等，应该采取什么样的绿色色调？(3)公司有一些独特的产品，还没有竞争对手；而另外一些产品，在市场上的竞争十分激烈。要做的决策是：对不同的蔬菜产品，应当如何定价？彼得莫斯要求大家务必准时到会，积极参与发表意见，并期望得到最有效的决策结果。(西安交大2007年研)根据以上资料回答
一项决策的有效性取决于()。
A．决策的质量高低
B．是否符合决策的程序
C．决策的质量与参与决策的人数
D．以上提法均不全面
