单项选择题

斜疝修复术后，预防阴囊血肿的措施是 A.
平卧位，膝下垫软枕 B.
预防便秘、尿潴留 C.
切口处用砂袋压迫并托起阴囊 D.
咳嗽时用手按压伤口 E.
不宜过早下床活动

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多项选择题

Which of the following features are true of children in learning a language? A. Children can not concentrate for very long. B. Children learn English because they think it interesting. C. Children are not good at planning and monitoring. D. Children are good at understanding concrete things.

单项选择题

下列不属于流转税的是（）。
A、增值税
B、消费税
C、所得税
D、关税