23. While shopping, people sometimes can_爱下问搜题

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问题选择题

23. While shopping, people sometimes can’t help ____into buying something they don’t really need.

A．to persuade

B．persuading

C．being persuaded

D．be persuaded

答案

答案：C

选择题

. What a pity. Considering his ability and experience, he _________ better.

A．need have done

B．must have done

C．can have done

D．might have done

单项选择题 A1/A2型题

西咪替丁抑制胃酸分泌的机制是（）

A.阻断M受体

B.保护胃黏膜

C.阻断H₁受体

D.促进PGE₂合成

E.阻断H₂受体