动力油系统是为轴流风机组（）提供动力源。_爱下问搜题

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问题填空题

动力油系统是为轴流风机组（）提供动力源。

答案

参考答案：静叶可调机构

选择题

They would tell how the slaves _____ on a ship to an American port on a rainy day.

A. being brought
B. could have brought
C. had been brought
D. was to be brought

判断题

我国的文物一般划分为全国重点文物保护单位、省级文物保护单位和市县级文物保护单位。