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【单选题】
起动时起动机运转无力,不能造成的原因有( )。A.
转子线圈短路
B.
轴承
C.
蓄电池电压低
D.
点火系故障
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皮皮学刷刷变学霸
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【简答题】W ho find it just now?
【单选题】微元法其实说的是简略版的定积分的定义。问题1 在有界闭区间上的可导函数的积分和的极限是否一定成立
A.
成立
B.
不成立
C.
分情况讨论
D.
当被积函数恒大于零时，结论成立
【单选题】Compared to illegal workers, guest workers
A.
are more likely to stay.
B.
tend to return to homecountries.
C.
save money more easily.
D.
are more interested in real estate.
【简答题】Just stay ( ) the house
【单选题】—How about going shopping this weekend , Peter? —Sorry. I prefer _ rather than _ . [ ]
A.
to stay at home ; go out
B.
to go out; stay at home
C.
staying at home; go out
D.
going out; stay at home
【单选题】Just _____ here and don't go around, or your parents can't find you. [ ]
A.
to stay
B.
stayed
C.
stay
D.
staying
【单选题】—Will you go camping this weekend? ----Just ____. If it rains, I will stay home.
A.
waits
B.
depends
C.
depends on
D.
counts
【单选题】已知函数 f(x) 在闭区间 [a,b] 上连续,且函数 F(x)为 f(x) 的一个原函数,则当( )时,定积分 的值不一定等于零。
A.
a=b
B.
C.
f(a)=f(b)
D.
F(a)=F(b)
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