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【单选题】
有关“细菌内毒素”的叙述，哪一项是错误的（）A.
主要成分是脂多糖
B.
抗体有较强的中和作用
C.
能激活补体
D.
有佐剂作用
E.
各种细菌内毒素致病作用基本相同
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反馈参考答案：
举一反三
【简答题】[A] become [B] became [C] becoming [D] have become
【单选题】If you haven’t got the service advertised on their website, they you have _____ to complain about it.
A.
choice
B.
purpose
C.
right
D.
reason
【简答题】A．Become more generous. B．Become more thoughtful. C．Become more sociable. D．Become more broad-minded.
【单选题】What will the children if their sick father dies?
A.
become for
B.
be become of
C.
happens to
D.
become of
【简答题】Thank you me to your house. [ ] A. for ask B. to ask C. to asking D. for asking
【简答题】——Do you mind my asking you a personal question? ——____________，any questions are welcome．
【单选题】The website can _______ you with the information that you want.
A.
pack
B.
spend
C.
provide
D.
offer
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