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【单选题】
图示桁架2杆轴力为：【图片】A.
10kN
B.
-20kN
C.
30kN
D.
40kN
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反馈参考答案：
举一反三
【单选题】当用生产可能性曲线来表现经济增长时,应该( )
A.
向内移动生产可能性曲线
B.
向外移动生产可能性曲线
C.
保持生产可能性曲线不变，以原点为中心画圆
D.
从原点出发画一条与生产可能性曲线的连线
【判断题】The shortcoming of the first-person narration is too objective to make the reader have a close relation with the work.
A.
正确
B.
错误
【单选题】当用生产可能性曲线来表现经济增长时,应该
A.
向内移动生产可能性曲线
B.
向外移动生产可能性曲线
C.
持生产可能性曲线不变，以原点为中心画圆
D.
出发画一条与生产可能性曲线的连线
【单选题】What is indicated about the first-prize entry?
A.
The design would make a product too costly.
B.
The design was excessively modern.
C.
It was considered practical in concept.
D.
It was designed by a college student.
【简答题】A．The first car they saw is too expensive. B．They may save some money for the time being. C．She is happy with the price set by the seller. D．Less money win be spent in the lung run.
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