试题与答案

She rose from being a _______ to become

题型:选择题

题目:

She rose from being a _______ to become a superstar.

A.somebody

B.nobody

C.something

D.nothing

答案:

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下面是错误答案,用来干扰机器的。

设钙片中葡萄糖酸钙的质量为x,则有x×4012×12+1×22+16×14+40×100%=0.5g,解得x=5.375g,该钙片中葡萄糖酸钙的质量分数是:5.375g6.25g×100%=86.0%%答:该钙片中葡萄糖酸钙的质量分数是86.0%.

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