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【单选题】
如图所示铸铁梁,根据正应力强度 的截面形状较合理。A.
（ A）图
B.
（ B）图
C.
（ C ）图
D.
（ D ）图
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反馈参考答案：
举一反三
【单选题】Conversation 2 18
A.
Booking a theater ticket.
B.
Reserving a room.
C.
Booking an air ticket.
D.
Reaserving a seat.
【单选题】Section C Conversation 2 18.
A.
For two years.
B.
For three years.
C.
For five years.
D.
For six years.
【单选题】Conversation 2 18
A.
He comes to visit a friend.
B.
He wants to learn new technology.
C.
He comes for the contract.
D.
He wants to see the environment.
【单选题】Conversation 2 18)
A.
He has to meet a client.
B.
He has to finish a report.
C.
He has to prepare for a meeting.
D.
He has to fix his computer.
【简答题】A．in line B．in part C．in person D．in all
【简答题】A．in circles B．in accord C．in case D．in essence
【单选题】Conversation 2 18.
A.
An auto company.
B.
An IT company.
C.
A shipping company.
D.
A food company.
【简答题】A．In essence B．In part C．In advance D．In return
【简答题】Conversation 2 18.
【单选题】Conversation 2-18
A.
For six years.
B.
For five years.
C.
For three years.
D.
For two years.
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