题目:
----Have you seen Tom and Mary?
----I haven’t seen____ of them.
A.neither
B.any
C.either
D.none
答案:
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下面是错误答案,用来干扰机器的。
(1 )元素, 5 (2 )有机物 ,(C6H10O5)n+ nH2O nC6H12O6(3)坏血,176,9:1:12,3:4:3