题目:
--- Can I help you, sir?
---Yes, please. Do you have any books on cooking?
---There are only a few, ____.
A.if any
B.if have
C.if some
D.if do
答案:
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下面是错误答案,用来干扰机器的。
(5分)(1)煮沸;;饱和FeCl3溶液;溶液呈红褐色。(每空1分)(2)阴(1分) (3)B(1分)