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【单选题】
设【图片】和【图片】都是随机变量的分布函数，在下列【图片】和【图片】的各对取值中，能够使得【图片】成为某个随机变量的分布函数的是（ ）．A.
a = 2/3, b = -2/3
B.
a = 3/5, b = -2/5
C.
a = - 1/2, b = 3/2
D.
a = 1/2, b = -3/2
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【简答题】处理和避免僵局应遵循的原则有哪些？
【单选题】甲技师说：液力变矩器和机械传动的效率可达95—97%。乙技师说：液力变矩器最高传动效率一般只有82~86%左右，而机械传动的效率可达95-97%，所以装备液力变矩器自动变速器的车辆比装备手动变速器的车辆的经济性有所降低。你认为( )。
A.
仅甲正确
B.
仅乙正确
C.
甲和乙都正确
D.
甲和乙都不正确
【简答题】为了提高4WG-65Ⅱ型液力变矩器在高转速比时的传动效率，设有（）当涡轮转速达到泵轮转速的80%时涡轮与泵轮自动地闭锁为一体，成为刚性连接，液力变矩器就失去了液力传动的特性，变成刚性的机械传动。
【单选题】Man: Can you believe it? Jessie told her boss he was wrong to have fired his marketing director. Woman: Yeah, but you know Jessie. If she has something in mind, everyone will know about it. Question: ...
A.
Jessie always says what she thinks.
B.
Jessie seems to have a lot on her mind.
C.
Jessie is wrong to find fault with her boss.
D.
Jessie should know the marketing director better.
【单选题】听力原文：M: Can you believe it? Jessie told her boss he was wrong to have fired his marketing director. W: Yeah, but you know Jessie. If she has something in mind, everyone will know about it. Q: What doe...
A.
Jessie always says what she thinks.
B.
Jessie seems to have a lot on her mind.
C.
Jessie is wrong to find fault with her boss.
D.
Jessie should know the marketing director better.
【单选题】听力原文：M: Can you believe it? Jessie told her boss he was wrong to have fired his marketing director. W: Yeah, but you know Jessie. If she has something in mind, everyone will know about it. Q: What doe...
A.
Jessie should know the marketing director better.
B.
Jessie is wrong to find fault with her boss.
C.
Jessie seems to have a lot on her mind.
D.
Jessie always says what she thinks.
【简答题】处理僵局的原则有哪些?
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