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【单选题】
调制中频电的波形、幅度和频率不断变换，作用人体时可产生什么后果A.
人体不易对其产生适应性
B.
引起神经肌肉组织兴奋
C.
避免电解产生
D.
降低皮肤电阻
E.
对人体组织的作用深度大
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【简答题】People tend to think of computers as isolated machines, working away all by themselves. Some personal computers do without an outside link, like someone's secret cabin in the woods. But just as most o...
【单选题】我国正常成年人
A.
男性的血量约占体重8%，女性约占体重7.5%
B.
男性的血量约占体重7.5%，女性约占体重8%
C.
男性的血量约占体重7%，女性约占体重6%
D.
勇性的血量约占体重9%，女性约占体重8%
E.
男性的血量约占体重8%，女性约占体重9%
【单选题】Hacking People tend to think of computers as isolated machines, working away all by themselves. Some do --personal computer without an outside link, like someone's hideaway (隐蔽的) cabin in the woods. B...
A.
to show that a hacker is more dangerous than a thief.
B.
to tell people that thieves like to steal computers nowadays.
C.
to demand that a protective computer system should be set up against thieves.
D.
to demonstrate that hackers and thieves are the same people.
【单选题】Network-based monitoring and alarm system commonly used the form of ______ network.
A.
combination of LAN and fieldbus
B.
RS485 bus
C.
Fieldbus
D.
LAN (local area network)
【单选题】患者，男性，71岁，身高170cm，体重80kg，患高血压20年。为控制患者体重所采取的措施不应包括
A.
制订个体化膳食方案
B.
监测体重变化
C.
吃减肥药
D.
规律运动
E.
控制饮食
【单选题】我国正常成年人( )
A.
男性的血量约占体重8%，女性约占体重7.5%
B.
男性的血量约占体重7.5%，女性约占体重8%
C.
男性的血量约占体重7%，女性约占体重6%
D.
男性的血量约占体重9%，女性约占体重8%
E.
男性的血量约占体重8%，女性约占体重9%
【单选题】根据以下材料，回答题。 Hacking People tend to think of computers as isolated machines，working away all by themselves.Some do——personal computer without an outside link，like someone’S hideaway（隐蔽的）cabin in the wo...
A.
to show that a hacker is more dangerous than a thief
B.
to tell people that thieves like to steal computers nowadays
C.
to demand that a protective computer system should be set up against thieves
D.
to demonstrate that hackers and thieves are the same people
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