【单选题】How old are Jada and Jessie in this story?
【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( )。
【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。
【简答题】下山差不多花了两个小时. (descent)
【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.