题目内容

He was determined to ______ the cause of the food spoilage.

A. find out
B. figure out
C. look after
D. turn back

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在学校人际关系系统中,处于主要地位的是( )。

A. 教师之间的关系
B. 干群关系
C. 师生关系
D. 同学关系

"We're late. The play has started.""I wonder how long ago ______."

A. did it begin
B. it began
C. was it beginning
D. it has begun

一般性解决问题阶段的第三阶段是( )。

A. 提出假设
B. 分析问题
C. 检验假设
D. 发现问题

Doctors say drinking water will help the pain ______ after the body has the right amounts of water and salt.

A. disappear
B. disappearing
C. disappeared
D. disappears