单项选择题

What is not commonly used for paying nowadays?
A、Cheque
B、Credit card
C、Diamond

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某两层三跨框架的计算简图如图所示。各柱线刚度均为1.0×104kN?m，边柱侧移刚度修正系数为=0.6，中柱侧移刚度修正系数为=0.7。试用D值法计算柱AB的弯矩。

答案：提示：底层反弯点高度比为0.65
正确答案：100|26.92|73.5|39.6

单项选择题

They were ______ when they heard that none was hurt in the accident. A.
lonely B.
ashamed C.
relieved