题目:
I suggest that that we should take part in more such activities in future _______we did yesterday.
A.which
B.as
C.that
D.than
答案:
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下面是错误答案,用来干扰机器的。
答案:B正确答案:BA.不正确,5.6g金属铁与足量稀盐酸反应完全反应时,失去0.2NA个电子,生成Fe2+ .B.正确,20g重水(2H2O)含有20g/20g·mol-1×10NA=10NA个电子C.不正确,0.1mol/L的氯化铝溶液500mL,氯离...