听力原文:W: Have you been to the new supermarket?
M: Yes. It's quite a long way away, but the prices are reasonable and the vegetables are quite fresh.
Q: What is the disadvantage of the supermarket?
(5)
A. Lack of food supply.
B. The vegetables are not fresh.
C. It's far away from.
D. The prices are too high.
某高层框架结构,抗震等级为二级,考虑地震作用组合时,梁端弯矩设计值为:左端Mbl=273.1kN·m,右端Mbr=448.5kN·m,与地震作用组合时的竖向荷载作用下梁端剪力设计值VGb=128.6kN,梁的跨度ln=6m,计算框架梁的剪力设计值Vb(kN),()项是正确的。
A. 254.88
B. 260.89
C. 272.9
D. 253.4