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大功率LED灯具与传统灯具相比有何的优势?

The bilge main is arranged to drain any watertight compartment () ballast, oil or water tanks and to discharge the contents overboard.

A. rather than
B. other than
C. in addition that
D. except for

患者剧烈呕吐2天,嗜睡,感觉迟钝,呼吸深快。查体:脉搏110次/分,呼吸32次/分,血压95/60mmHg。应首选的检查项目是()

A. 血清钙测定
B. 血气分析
C. 血清钠测定
D. 血清钾测定
E. 血CO2CP测定

低压电路断路,指针指()不动。

A. “0”
B. 3~5
C. 5~10

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