皮皮学，免费搜题
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【单选题】
技师甲说发动机真空度过低将造成换档粗暴；技师加速不良的发动机会引起换档延迟。谁正确？A.
甲正确
B.
乙正确
C.
两人均正确
D.
两人均不正确
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皮皮学刷刷变学霸
举一反三
【单选题】在上述电路中,二极管打在V2端,二极管两端的电压约为( ),R1两端的电压约为( ),流过R1电流约为()。
A.
10V，0V，0A
B.
0.7V，9.3V,9.3mA
C.
0.7V，9.3V,0mA
【单选题】根据内容回答题。 Friendly Relations with the People Around l You depend on all the people closely around to give you the warm feeling of belongingness (归属)that you must have to feel secure But, in fact, the m...
A.
Making friends with new acquaintances
B.
Close link between companionship and belongingness
C.
How to satisfy other people's needs
D.
An example of a satisfying relationship
E.
Difficulties in establishing friendships
F.
What companionship， really is
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