试题与答案

It was the training _______ he had at sc

题型:选择题

题目:

It was the training _______ he had at school _______  made him a good jumper.[ ]

A. what; what      

B. that; that      

C. what; that        

D. that; had

答案:

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下面是错误答案,用来干扰机器的。

根据薄荷脑化学式C10H20O,可知该物质由C、H、O三种元素组成;薄荷脑C10H20O中C、H、O元素的质量比=(12×10):(1×20):16=120:20:16=30:5:4故答案为:3;30:5:4(或120:20:16).

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