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【判断题】
设坐标变换函数 有反变换 ,且函数都具有连续的偏导数,则A.
正确
B.
错误
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反馈参考答案：
举一反三
【多选题】Which of the following charters are belonged to tramp shipping?
A.
Sea Charter
B.
Voyage Charter
C.
Time Charter
D.
Demise Charter
【单选题】Are you going to be on the Chinese students' team6.16
A.
Wow, that's going to be exciting.
B.
No, not yet. Who are competing?
C.
No, I'm not good at rowing a boat.
D.
I'm sure the team will be happy to have you.
【单选题】Train fares are going up again, unfortunately.( )
A.
money
B.
seats
C.
payments
D.
amounts
【单选题】The passage mainly tells us about______.
A.
the bus and train fares in the US
B.
the ways of paying a taxi in the US
C.
the public transportation in the US
D.
the advantage of subways in the US
【单选题】Are the one-way fares more expensive than the round-trip fares?
A.
Yes, the one-way fares are more expensive.
B.
No, the one-way fares and round-trip fares cost the same.
C.
No, the one-way fares are less expensive.
【单选题】Why do some people refuse to pay train fares, according to Martin?
A.
They are honest.
B.
The conductors do not ask them to.
C.
They do not have enough money.
D.
They think the train is publicly owned.
【单选题】Are you going to be on the Chinese students' team?
A.
Wow, that's going to be exciting.
B.
No, not yet. Who are competing?
C.
No, I'm not good at rowing a boat.
D.
I'm sure the team will be happy to have you.
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