题目内容

轴承分为滚动轴承和滑动轴承。( )

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A computer can carry out _( 算术上的) or _ (逻辑上的) operations via computer programming.

A computer consists of _____ _ _ (中央处理器), _ (内存), and _ _____ (外围设备).

When your Internet _____ (浏览器) is open, the program is loaded from your _ _ (硬盘) and placed into _____ (随机存储器).

_____ (操纵杆), _ _ (图像扫描仪) and touch screens are _ _______ (输入设备).