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【单选题】
关于初次体液免疫应答的说法错误的一项是( )
A.
潜伏期长
B.
生抗体的量少
C.
持续时间短
D.
以IgM和IgG为主
E.
抗原第二次进入机体引起的免疫应答
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参考答案:
举一反三
【判断题】一般若过程有一个返回值时,定义为函数过程直观;当无返回值或有多个返回值时,习惯定义为子过程。
A.
正确
B.
错误
【单选题】一Mark, what ( ) your parents ( )? 一They are watching TV in their room.
A.
is; does
B.
are; do
C.
are; doing
【单选题】Section C Directions: In this section, you will hear three passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you he...
A.
Watching can cause physical diseases.
B.
TV places the viewer in a completely passive position.
C.
People are too dependent on TV.
D.
The quality of some TV programs is poor.
【判断题】函数过程一定有一个返回值。
A.
正确
B.
错误
【简答题】Jan:I have new photos of my family, but they’ re not very good. This is my sister… Mark:Where is she?  Is she at the library? Jan:No, she’ s in the living room. She s doing her homework. And that s my...
【单选题】Mark is watching TV now.(改为否定句) Mark TV now.
A.
isn’t watching
B.
isn’t watch
【单选题】快速调节主要是改变了酶的
A.
结构和活性
B.
含量
C.
大小
D.
作用机制
【判断题】函数过程一定有一个返回值。
A.
正确
B.
错误
【简答题】如果一个自定义函数过程的RETURN语句中没有指定表达式,那么该函数的返回值是
【简答题】阅读理解 Jan:I have new photos of my family, but they' re not very good. This is my sister... Mark:Where is she? Is she at the library? Jan:No, she' s in the living room. She’s doing her homework. And th...
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