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【简答题】
To protect yourself against coronavirus, remember to wash your hands with soap and warm water for 20 seconds before eating or drinking or ____1_______ in a public. Avoid touching your eyes, nose or mouth without washing your hands first, so you don’t _____2______ yourself. If you’ve come into contact with the virus, you should also avoid close contact with other people who are sick particularly if they are _____3______ which are common symptoms of respiratory infections like coronavirus. While there are early reports that some people who did not have disease symptoms ______4_____ coronavirus to others, closer examination of evidence has not proven this to be true. Research on the string of coronavirus is in its early stages. And findings may change with _____5______. But there is no evidence that people can transmit coronavirus during _____6______before they show symptoms. The Centers for Disease Control and Prevention also suggest cleaning _____7______with disinfectant every day. Clean your doorknobs, _____8______, tables, toilets, phones, keyboards and bathroom fixtures daily. To protect yourself against animal sources of coronavirus, the World Health Organization recommends avoiding unnecessary contact with alive or dead animals. Washing your hands after contact with any animals and making sure ______9_____. Avoid travel to areas with ____10_______ and visit CDC. Gov for updated travel, health notices.
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【单选题】沉溺于网上购物不可自拔,属于网络成瘾的哪一类?( )A. 网络信息成瘾B. 网络交易成瘾C. 网络关系成瘾
A.
网络信息成瘾
B.
网络交易成瘾
C.
网络关系成瘾
D.
网络游戏成瘾
【单选题】一般情况,在风荷载作用下,规则框架结构的侧移特征是()
A.
各层侧移越往上越大,层间侧移越往上越大
B.
各层侧移越往上越大,层间侧移越往上越小
C.
各层侧移越往上越小,层间侧移越往上越大
D.
各层侧移越往上越小,层间侧移越往上越小
【单选题】为什么最后一次酒婆喝了首善街小酒馆的酒会醉,最后导致车祸?
A.
酒婆喝太多
B.
酒婆连续几天喝酒
C.
酒馆的酒没有掺水
【单选题】对该患者进行二级预防应首选
A.
阿司匹林
B.
波利维
C.
华法林
D.
阿司匹林+波立维
E.
阿司匹林+波立维+华法林
【单选题】使用洛伐他汀对胎儿的危险性属于
A.
A级
B.
B级
C.
C级
D.
D级
E.
X级
【单选题】比较水银血压计,电子血压计的主要优点是( )
A.
血压示值允许误差小
B.
结构轻巧,易于携带,自我测量
C.
测量结果的重复性好
D.
测量结果的正确性强
【单选题】臭氧层为什么可以保护地球上的生物()。
A.
可以过滤掉太阳光中的紫外线
B.
挡住了太阳的热量
C.
帮助地球保温
D.
生成氧气
【单选题】网络成瘾属于哪方面的健康问题?
A.
身体健康问题
B.
心理健康问题
C.
两者都是
D.
都不对
【判断题】网络成瘾属于行为成瘾,一般是指因过度使用互联网而引起明显的社会、心理损害的一种现象( )
A.
正确
B.
错误
【简答题】某机械中,M1和M2都为三相交流异步电动机,控制要求为: M1 电动机只能单向连续运转, M2 电动机即可以正、反向点动控制,也可以正反向连续运转。要求 M1 起动运行后 M2 才可以起动运行,停车时, M2 停止后才能停 M1 , 同时要求有短路和过载保护, 请设计电动机主电路图和继电接触器控制电路图。
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