题目内容

新启用的作业机在磨合前,原地启动,其转速不超过()r/min时,应尤漏油、气、水现象,操纵杆灵活,各部件运转正常,才能进入磨合。

A. 1000
B. 2000
C. 1200
D. 2400

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装卸费及其他作业费属()。

A. 客运收入
B. 货运收入
C. 货物收入
D. 代收款

交流发电机采用旋转磁场有何优点?

挥发分和含硫量对输煤系统没有明显影响。

A. 正确
B. 错误

When compressing data with the DeflateStream class, how do you specify a stream into which to write compressed data?()

A. Set the BaseStream property with the destination stream, and set the CompressionMode property to Compression.
B. Specify the stream to write into the DeflateStream object is created (for example, in the constructor).
C. Use the Write method of the DeflateStream class.
D. Register for the BaseSream event of the DeflateStream class.

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