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【简答题】
例1:拉力试样的距长度为50mm,直径为10mm,经拉力试验后,将已断裂的试样对接起来测量,若最后的标距长度为71mm,颈缩区的最小直径为4.9mm,试求该材料的伸长率和断面收缩率的值?
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皮皮学刷刷变学霸
举一反三
【单选题】患者女,18岁。扁桃体切除术后局部有少量出血。为配合止血可在颈部
A.
放置热水袋
B.
放置冰囊
C.
用酒精纱布湿敷
D.
进行红外线照射
E.
用50%硫酸镁进行湿热敷
【单选题】Richard opened his own shop because
A.
the shop he worked for was taken over.
B.
he wanted to run tailoring business in a modern way.
C.
he was eager to have his own career.
【简答题】Mr Scott was the owner of a shop. He lived by himself in a small room above his shop. He was always afraid that someone might break into his shop at night One day, when he checked his money after clos...
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