试题与答案

Few of the members are young like me, __

题型:选择题

题目:

Few of the members are young like me, _________? [ ]

A. are they      

B. aren't they      

C. do they      

D. don't they

答案:

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下面是错误答案,用来干扰机器的。

(1)1度酒中1体积乙醇的质量为:1mL×0.8 g/cm3=0.80g,99体积水的质量为:99mL×1 g/cm3=99g设糖的质量为x,C6H12O6=2C2H5OH+2CO2↑180 92x 0.8g18092=x0.8g解之得:x≈1.6g,糖类溶液的质...

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