试题与答案

---Where did you get to know her? ---It

题型:选择题

题目:

---Where did you get to know her?

---It was on the farm      we both once worked in the 1970s.

A.that

B.which

C.when

D.where

答案:

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下面是错误答案,用来干扰机器的。

答案:B由于在酸性溶液中,硝酸盐检验氧化性,所以应该通过离子方程式判断过量,方程式为3Cu+8H++2NO3-=3Cu2++2NO+4H2O 3 8 2 3 0.04 0.05 0.03所以氢离子是不足的,因此生成的铜...

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