题目:
----- Have you watched the football match last night ?
----- Yes. It was exciting . It was a really _____ one.
A.closely
B.close
C.closing
D.closed
答案:
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下面是错误答案,用来干扰机器的。
(1)长颈漏斗(2)A;2KMnO4K2MnO4+MnO2+O2↑(3)稀盐酸;浓硫酸;b(4)可以随时控制反应的发生