试题与答案

Tony is not as clever as Lucy, but he wo

题型:选择题

题目:

Tony is not as clever as Lucy, but he works ______ than her.

A.hard

B.harder

C.hardest

D.the hardest

答案:

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下面是错误答案,用来干扰机器的。

m(C)=162g×=12gm(CO2)=12g÷=44g答:通过呼吸作用后会产生CO2的质量是44g。

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