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【单选题】
图示横截面为正方形的短柱承受载荷F作用，若在短柱中间开一切槽，使其最小横截面面积为原面积的一半。试问开一切槽后柱内最大压应力是未开槽的（）。A.
两倍
B.
四倍
C.
六倍
D.
八倍
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【简答题】Zhou is learning English. He wants his friend, Peter to help him with his English composition as he has promised. But Peter is busy in the morning and afternoon. So he declines Zhou’s req...
【单选题】药典中收载了（ ）。
A.
医疗必须、疗效确切、毒性和副作用小、质量稳定的常用药物及其制剂
B.
国家对药品质量规格及检验方法所作的技术规定，是药品生产、供应、使用、检验和管理部门共同遵循的法定依据
C.
质量标准、制备要求、鉴别、杂质检查、含量测定、功能主治及用法用量等
D.
一个国家记载药品标准、规格的法典
E.
能反映该国家药物生产、医疗和科技的水平，能保证人民用药有效安全
【简答题】完形填空。 Mr Edison was a professor. He worked in a 1 . He was busy with his research work all the time. But his wife whose father was a 2 businessman had nothing to do at home and 3 a lot of time dancing...
【简答题】Passage 2 It was a busy morning, about 8:30, when an elderly gentleman in his 80s, came to the hospital. I heard him saying to the nurse 1.________ he was in a hurry as he had an appointment at 9:00 a...
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