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下列关于《建筑抗震设计规范》对现浇钢筋混凝土房屋采用单跨框架结构时的要求，正确的是（　　）。

A.甲、乙类建筑以及高度大于24m的丙类建筑，不应采用单跨框架结构；高度不大于24m的丙类建筑不宜采用单跨框架结构
B.框架结构某个主轴方向有局部单跨框架应视为单跨框架结构
C.框架-抗震墙结构中不应设置单跨框架结构
D.一、二层连廊采用单跨框架结构不需考虑加强
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某电梯门的宽度为1000mm，高度为2000mm，则土建层门洞口的尺寸为( )
A.宽度为1000mm，高度为2000mm
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Sometimes I feel that being the mother of three small children is like operating a large circus(马戏团)． 21 afternoon last week, my three sons playing peacefully in the back yard ( 院子), 22 the ball from one to another．I jumped at the chance to talk to one of my friends 23 the phone, but before I 24 to the phone, I could tell the boys had begun to quarrel with each other about something．I rushed out to 25 peace,but before I got there Charles had 26 a rock at Mark,and hit him in the eye．By the time I got to the back yard,they had begun to 27 about this．Even David,the oldest boy,who won' t usually fight with anybody about 28 ,was involved(卷入) First,! 29 them stop fighting, and then ! examined Mark' s eye．I decided that it wasn' t going to develop into a black eye, but I felt that they should 30 at least a little for 31 they had done．"I' m going to 32 to your father about this when he comes home tonight,"I said．"He and I will think of how to punish you．"Things were 33 quiet after that for about half an hour, and then Charles 34 a glass in the kitchen,and at almost the same 35 ,Mark fell out of the apple tree．
第（26）题答案
A.thrown
B.hit
C.beaten
D.stricken
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