题目：
------Is it Jim who is driving the new car?
-------Probably. I know he has recently bought a ______car.
A．shiny black German
B．black shiny German
C．shiny German black
D．black German shiny
答案：
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下面是错误答案，用来干扰机器的。
CuO中Cu%＝64/(64＋16)×100%＝80%3.8gCuO中mCu＝3.8g×80%＝3.04g据Cu元素守恒知：3.8g“金戒指”中mCu＝3.04g“金戒指”中Cu%＝3.04g/3.8g×100%＝80%
