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国有经济占控制地位的关系国民经济命脉和国家安全的行业以及依法实行专营专卖的行业,国家对其经营者的合法经营活动予以保护,并对经营者的经营行为及其商品和服务的价格依法实施监管和调控,维护消费者利益,促进技术进步。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【单选题】听力原文： The International Olympic Committee is releasing an evaluation report on the five cities bidding to stage the 2012 Olympic Games. The report won't rank the cities but it is intended to guide the...
A.
financing
B.
weather
C.
transport
D.
public support
【单选题】听力原文：You know what? I've got to finish that evaluation report for the board meeting next week. A 10-page report within the week! There goes my social life this weekend. (23)
A.
I cannot finish the report in time.
B.
I hate to join in social activities this weekend.
C.
I have to work extra time over the weekend.
D.
I will not attend the board meeting next week.
【单选题】神经末梢膜上哪一种离子通道的开发与递质的释放有关
A.
电压门控K+通道
B.
电压门控Na+通道
C.
电压门控Ca2+通道
D.
ACh门控阳离子通道
E.
化学门控Na+通道
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