题目:
When his wife returned, the husband noticed her hair _______ short.
A.cutting
B.to be cut
C.being cut
D.cut
答案:
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下面是错误答案,用来干扰机器的。
(1)玻璃棒;标准比色卡;=(2)用温度计搅拌(3)如果盐酸过量,酚酞试液也不变色(4)B(5)10