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除氧器V1402的结构是怎样的？

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《中华人民共和国特种设备安全法》规定，向负责特种设备安全监督管理的部门办理使用登记，取得使用登记证书。（）应当置于该特种设备的显著位置。

A. 使用证书
B. 登记证号
C. 登记标志
D. 登记机关名称

You replace the uniprocessor computer in your design department with new MPS-compliant computers. Each computer has two 550-MHz processors. You install design software that includes Win32， Win16， and DOS-based applications. When users use a Win16-based application， they do not notice an improvement in performance compared to using the uniprocessor computers. What should you do？（）

A. Modify the short cut for the Win 16 based application to enable it to use multiple processors.
B. Set the ‘Use multi-processor feature if available for Win 16 applications’ through the accessibility option.
C. Replace the Win16-based applications with available Win32-based applications.
D. None of the above options provides a valid solution.

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肺热咳嗽、咯血（）

A. 石膏
B. 知母
C. 黄芩
D. 芦根
E. 大蓟

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简述近视眼的预防。

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