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【简答题】
如图所示，已知h=0.85 m，管(a)中气流的绝对压力。若已知h1=0.05 m，h2=0.1 m，求吸水管(b)中C的真空度。
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举一反三
【多选题】According to the text, which of the following are caused by the drug abuse?
A.
There is a strong association between drug use and crime.
B.
Drug dependence takes a significant toll in terms of personal health and safety
C.
Drug abuse is a major cause of unemployment
D.
There are great economic losses because of drug abuse
【单选题】Which of the following is NOT correct about drug
A.
drugs can obtain from plants, animals, or minerals
B.
each drug has only one generic name
C.
drug only induce beneficial effects
D.
may change to poison
【多选题】Which of the following are probably caused by the drug abuse?____
A.
There is a strong association between drug use and crime.
B.
Drug dependence takes a significant toll in terms of personal health and safety.
C.
Drug abuse is a major cause of unemployment.
D.
There are great economic losses because of drug abuse.
【单选题】( )第一次将旅游产业提升到生活服务业的层面,意味着旅游服务将成为现代生活方式的重要层面。
A.
《国务院关于加快发展旅游业的意见》
B.
《关于加快发展生活业促进消费结构升级的指导意见》
C.
《国务院关于促进旅游业改革发展的若干意见》
D.
《关于进一步促进旅游投资和消费的若干意见》
【单选题】病人女性，24岁，贫血1年。血红蛋白80g/L，红细胞3×10的十二次方/L，网织红细胞0.69%，白细胞、血小板正常。经口服铁剂治疗7天后，血红蛋白不升，网织红细胞为1.43%，请问应用注射铁剂治疗时，下列说法不正确的是
A.
铁剂可能引起过敏反应
B.
铁剂要作深部肌内注射
C.
静脉注射铁剂时应避免药液外渗
D.
使用时剂量计算要正确
E.
可出现高血压反应
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