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【单选题】
一个浮动支承可以消除2个自由度,一个长的V形块可消除( )个自由度A.
0
B.
1
C.
2
D.
3
E.
4
F.
5
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反馈参考答案：
举一反三
【单选题】What does the writer tell us in the second paragraph?
A.
You won't need to go shopping at all with the help of RFIDs.
B.
You won't need to pay when go shopping with the help of RFIDs.
C.
You won't be able to use an oven without the help of RFIDs.
D.
You can easily buy what you need with the help of RFIDs.
【判断题】RFID does not need the help from GIS and can work alone in the supply chain.
A.
正确
B.
错误
【单选题】Why does the finishing time of the meeting need to be changed?
A.
There isn't a room available at that time.
B.
A speaker is coming to address the students.
C.
Language testing will take longer than expected.
D.
Lunch will no be ready until much later.
【单选题】The old man needs our help, ______ ?
A.
needn’t he
B.
need he
C.
doesn’t he
D.
does he
【单选题】What does the man mean?
A.
Steve doesn' t need a scholarship.
B.
Steve doesn' t have much money.
C.
Steve doesn' t know how to apply.
D.
Steve isn' t applying for a scholarship.
【单选题】How does Irene react to Jack saying that she doesn’t need any money?
A.
She is interested because she doesn’t need to pay for the ticket.
B.
She is surprised in a positive way.
C.
She is surprised in a negative way.
D.
She is excited to learn that she doesn’t need any money.
【单选题】What does the man mean?
A.
They are buying only what they need.
B.
There won't be enough chairs left.
C.
They don't need any more chairs.
【单选题】What does the man mean?
A.
They're going to France for a vacation.
B.
The woman doesn't need to study now.
C.
He's concerned about the woman's studies.
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