题目内容
有一连续梁，受力如图所示，则下列连续梁上的弯矩示意图中，正确的是()。
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有一桁架，受力及支承如右图，则AC杆和AB杆的内力分别为()。（拉力为正，压力为负）
已知某投资项目的净现金流量如下表所示。如果投资者目标收益率为12%，则该投资项目的动态投资回收期为()年。
单位：万元
Which of the following is true according to the article？
[A] Sally's mother contributes much to Sally's bad eating habits.
[B] Sally's mother praises the baby sister to make Shally angry.
[C] Sally's mother cannot cook nutritional food.
[D] Sally's mother intends to make mealtime a struggle for power.
The best title for the above article is
[A] Why Men Lack Capacity for Exercise Over the Years.
[B] How Men's Bones Are Arranged Differently From Women's.
[C] Studies on Differences and Similarities Between Men and Women.
[D] Men and Women: Some Differences.
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