– Do you know Li Ying?–Yes. She is an ________ girl from Shanghai.

题干

– Do you know Li Ying?

–Yes. She is an ________ girl from Shanghai.

A：eleven-years-old

B：twelve-year-old

C：eleven-year-old

D：twelve years old

上一题下一题 0.0难度选择题更新时间:2017-12-18 04:03:12

）某烃经李比希元素分析实验测得碳的质量分数为85.71%，氢的质量分数为14.29%．该烃的质谱图显示其相对分子质量为70，该烃的核磁共振氢谱只有一个峰，请通过计算确定该烃的实验式、分子式、结构简式．

小学学科试题库

初中学科试题库

高中学科试题库