PCR反应过程中需使用()。
A、限制性核酸内切酶
B、DNA连接酶
C、DNA聚合酶
D、DNA修饰酶
我国课程改革未来的走向是()。
A UNIX user named Bob wants to replace his chess program with a new one, but he is hot sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/* .jar games.Chess Bob‟s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/* .jar What is a possible location for the Chess.class file?()
A、 /test/Chess.class
B、 /home/bob/Chess.class
C、 /test/games/Chess.class
D、 /usr/lib/games/Chess.class
E、 /home/bob/games/Chess.class
F、 inside jarfile /opt/java/lib/Games.jar (with a correct manifest)
G、 inside jarfile /home/bob/downloads/Games.jar (with a correct manifest)
1925年,国际劳工组织列为职业病的慢性伤害有()
A、辐射感染
B、铅中毒
C、炭疽病感染
司法赔偿中的侵权主体是司法机关及其工作人员。
A、对
B、错