题目内容

A bundle of sticks was harder to break than a single one.

A. 真
B. False

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能够抑制呼吸链递氢或递电子过程的药物称为呼吸链的抑制剂。如能够抑制第一位点的有粉蝶霉素A、鱼藤酮等，而能够抑制第二位点的有抗霉素A和二巯基丙醇。 ()

A. 正确
B. 错误

听力原文：M: Excuse me, Madam？
W: Are you talking to me？
M: Yes, Madam. You forgot your change.
Q: What is the man？
(22)

A postman.
B. A policeman.
C. A shop assistant.

We must get up early tomorrow, ______we will miss the 6 o'clock train to Shanghai.

A. so
B. or
C. but
D. however

A．HoweverB．BesidesC．MeanwhileD．There

A. However
Besides
C. Meanwhile
D. There