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【单选题】
下列关于T、B细胞相互作用的描述错误的是( ) A、Th产生细胞因子诱导T、B细胞的增殖 B、Th识别的表位与B细胞识别的表位不同 C、Th细胞只能识别被MHC II类分子提呈的抗原肽 D、Th细胞通过直接接触B细胞来诱导它增殖 E、需T细胞的CD28与B细胞的B7结合A.
B.
C.
D.
E.
E
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举一反三
【单选题】Mike knows Chinese, you can talk with him in Chinese.
A.
few
B.
a few
C.
little
D.
a little
【单选题】What does “depressed” mean in Paragraph 4?
A.
Very sad and without hope.
B.
Taking a lot of time and effort.
C.
So bad or difficult.
D.
Very generous.
【单选题】Miguel: Hey, Chris. ______
A.
I'm depressed. It's my boss.
B.
What happened?
C.
You seem depressed. Are you OK?
【简答题】What is your counter explanation on the faulty statement of "every Chinese man knows Kongfu"?
【简答题】What does Professor Gordon suggest people who are intensely depressed or suffering from some mental blockage to do?
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