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【单选题】
与TTL门电路相比，下面 不是CMOS门电路的优势。A.
输入阻抗小
B.
静态功耗低
C.
电源电压范围宽
D.
扇出能力（驱动能力）强
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【单选题】Countries with _____ economies in which property rights are protected tend to achieve greater economic growth rates than other economies where property rights are poorly protected. 产权受到保护的经济体的经济增长率往往高...
A.
mixed混合
B.
market市场
C.
free market自由市场
D.
command命令
【单选题】Countries with _____ economies in which property rights are protected tend to achieve greater economic growth rates than other economies where property rights are poorly protected.
A.
mixed
B.
market
C.
free market
D.
command
【单选题】A singular important link between politics and economics in countries that are attempting to increase their economic growth rates is that
A.
democracies are more productive than non democracies.
B.
democracies must constantly make difficult budgetary choices.
C.
political instability is incompatible with long-term private investment.
D.
conservative governments tend to focus development on military industries.
【单选题】女性, 59岁,有慢性咳嗽、咯痰、气促病史12余年,诊断为 慢性 阻塞性肺 疾 病,右心衰竭,下列哪项不是体循环瘀血的表现
A.
颈静脉怒张
B.
腹水、肝大
C.
下肢浮肿
D.
肺水肿
【简答题】With rapid increase of economic rate in western countries, more and more married young couples tend to have no child or only one. At the meantime, many developing nations adopt family planning policy ...
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