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【简答题】
水晶宫的设计者是（）。
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反馈参考答案：
举一反三
【判断题】If good 1 is measured on the horizontal axis and good 2 is measured on the vertical axis and if the price of good 1 is p1 and the price of good 2 is p2, then the slope of the budget line is -p2/p1.
A.
正确
B.
错误
【单选题】If the price is P 4 , the firm will earn profits equal to the area
A.
(P 2 -P 1 )*Q 2
B.
(P 3 -P 2 )*Q 3
C.
(P 4 -P 2 )*Q 4
D.
(P 4 -P 3 )*Q 3
E.
None of the above is true.
【单选题】A signal is measured at two different points. The power is P1 at the first point and P2 at the second point. The dB is 0. This means ________.
A.
P2 equals P1
B.
P2 is zero
C.
P2 is much larger than P1
D.
P2 is much smaller than P1
【单选题】图示刚架，EI=常数，各杆长为l，A截面的转角为______。
A.
ql 3 /(24EI)(逆时针)
B.
ql 3 /(24EI)(顺时针)
C.
ql 3 /(12EI)(顺时针)
D.
ql 3 /(6EI)(逆时针)
【简答题】已知刚架的弯矩图如图所示，各杆EI=常数，杆长l=4m，结点B的转角qB为（ ）。【图片】
【简答题】试写出一个双向起泡的排序算法,即在排序过程中交替改变扫描方向
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