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【简答题】
将30Ω的电阻接在一电源的两端,通过电阻的电流是0.3A,若把30Ω的电阻拿走,将10Ω与60Ω的电阻分别接在这个电源的两端,那么通过两电阻的电流分别是( ) A.0.9A,0.15A B.0.15A,0.9A C.0.1A,0.6A D.0.6A,0.1A A. A
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举一反三
【单选题】形成肺门阴影的主要解剖结构是:
A.
肺动脉、肺静脉、支气管、淋巴结
B.
肺动脉、上肺静脉、支气管、淋巴结
C.
肺动脉、上肺静脉、支气管
D.
肺动脉、肺静脉、淋巴结
E.
肺动脉、上肺静脉
【单选题】Members of Youth clubs are encouraged to participate ail of the following activities except______.
A.
sports
B.
cultural activities
C.
community service
D.
math competition
【单选题】Currently, almost ail the flagship chipmakers in that country are owned by American investors.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】The possible causes of the worldwide increase in kidnappings are ail the following EXCEPT that ______
A.
the kidnappers consider it a pleasure to do harm to the victims
B.
some rebel groups financed themselves through kidnapping
C.
foreign countries have invested little in the Third World
D.
the kidnappers know that frequently an insurance company will pay out big for the hostages
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