During the medieval times, if one man covered in armor extended an open hand to another, ______.
A．the same gesture would definitely be returned
B．he was sending a signal of friendship
C．he would receive a dagger or sword
D．he was asking for a weapon
预防破伤风用
A、丙种球蛋白
B、类毒素或抗毒素
C、活疫苗
D、化学药品
E、灭活疫苗
接触评定的主要目的是
A、估测总体人群或不同亚群接触该有害因素的程度或可能程度
B、估测总体人群接触某种有害因素对健康的影响程度
C、估测总体人群或不同亚群接触有害因素的程度
D、估测总体人群或不同亚群接触有害因素的程度及对健康的影响
E、估测总体人群接触有害因素的程度及对健康的影响
胸骨左缘第3～4肋间闻及Ⅲ～Ⅴ级粗糙的全收缩期杂音，肺动脉第二音亢进
A.房间隔缺损
B.室间隔缺损
C.动脉导管未闭
D.肺动脉狭窄
E.法洛四联症
It can be inferred from Paragraph 4 that______.
A．golf and photography skills don"t fit children
B．there must be a tournament for the skill you teach
C．getting ready to share is the basis of helping children
D．traditional sports are neglected by the children now
Which of the following can best serve as the title of the passage？
A．A Possible Approach to Checking Heart Disease
B．The Risk of Heart Disease
C．The Relation Between Weight and Blood Pressure
D．How to Improve Your Heart Health