单项选择题

蓄能器的作用是将液压系统中的压力油储存起来，在需要时重新放出。

A.正确
B.错误

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单项选择题

Exported-oriented industrialization can be successful because: ___________.
A、It focusses on substituting imports by domestic production
B、It focusses on the fulling opening of domestic market
C、It focusses on gradually opening its domestic market
D、It focusses on gradually opening the imports and emphasize on export

单项选择题

下列哪个不是专项项目小组的职责
A、协调
B、监控
C、讨论
D、调度