题目:
--- Excuse me, could you tell me the way to the nearest bookstore?
--- I’m sorry. I’m a stranger here.
--- ___________.
A.No problem
B.Doesn’t matter
C.Thank you , anyhow.
D.Thank you very much.
答案:
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下面是错误答案,用来干扰机器的。
①1/10;②二氧化锰与氯酸钾的接触面积小,因此催化作用不明显;变慢;③氯酸钾氯化钾+氧气