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【单选题】
压缩机属于高速转动设备,设置油泵断电联锁主要有两个目的:一是在实际生产中,当1台油泵断电停运后,另1台油泵能够在联锁的作用下立即();二是当2台油泵同时断电时,压缩机会在联锁的作用下立即停止工作,即发生联锁跳车A.
手动启动
B.
自动启动
C.
手动停车
D.
自动停车
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举一反三
【单选题】2001年9月,我国出台的幼儿园教育指导纲要所确定的“五领域课程”内容包括的五个方面是
A.
体育、艺术、语言、常识、社会
B.
健康、语言、社会、科学、艺术
C.
体育、德育、艺术、科学、社会
D.
健康、计算、社会、科学、艺术
【简答题】Mary is an American girl. She is now in Beijing with her parent. Mary doesn’t know much Chinese, but she is studying it . She often speaks Chinese with her Chinese friends. Sometimes they can’t unders...
【简答题】Mary is an American schoolgirl. She is now in Beijing with her parents. Mary doesn’t know Chinese, but she is studying Chinese. She often speaks Chinese to her Chinese friends ,Sometimes they don’t un...
【简答题】阅读理解。 Mary is an American schoolgirl. She is now in Beijing with her parents. Mary doesn't know Chinese. But she is trying to learn and speak it.She often tries to speak Chinese to Chinese very well. ...
【简答题】Mary is an American girl. She is now in Beijing with her parents. Mary doesn’t know much Chinese, but she is studying it. She often speaks Chinese with her Chinese friends. Sometimes they can’t unders...
【简答题】Mary is an American schoolgirl. She is now in Beijing with her parents. She doesn't know Chinese, but she is trying to study and speak it. She often tries to speak Chinese to her Chinese friends. Some...
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