单项选择题

下列哪个观点与外科手消毒不符合?()
A、外科手消毒是指外科手术前医护人员用流动水和洗手液揉搓冲洗双手的过程。
B、外科手消毒消毒至上臂下1/3。
C、外科手消毒可以杀灭暂居菌和减少常居菌。
D、外科手消毒也需要使用手消毒剂。

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单项选择题
What did Jason do when he was in high school and was down or upset?
A．He would find some really tough math or physics problems to do.
B．He would go to the dormitory and have a nice rest.
C．He would do both mentioned above.
判断题
按照工作原理分类,泵与风机分为离心式、轴流式和容积式。 正确 错误
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