问题
单项选择题
架体沿附着于墙体结构的导轨升降的附着式升降脚手架是（）附着式升降脚手架。
A.导轨式
B.导座式
C.吊轨式
D.挑轨式
答案
参考答案：A
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架体沿附着于墙体结构的导轨升降的附着式升降脚手架是（）附着式升降脚手架。
A.导轨式
B.导座式
C.吊轨式
D.挑轨式
参考答案：A
As an exchange student, I have been staying in a host family in Beijing for the past five months. The parents are 36 in their mid-30s and the son just turned 5. In exchange for room and board, I teach their son 37 . Like in many of the other Chinese families, he’s an only child. And though he has 38 plastic trucks and boxes full of crayons, I don’t know 39 he has the time to play. When he’s not in the kindergarten, he’s taking after-school classes. On the weekends, the boy goes to more classes. He has one day off―Sunday. Compared to his schedule, I feel like my childhood was 40 a waste of time. I learned how to climb trees and draw cartoons. I wasn’t learning Chinese at his age. But he and lots of other children are learning English. Both his parents dream that he will have 41 jobs, higher pay, and bigger houses. The boy seems to take no interest 42 learning English. He doesn’t need a teacher, but a playmate. He is, 43 , only 5. When I think about my life as a 5-year-old, I know for sure I wasn’t half as 44 as he is. In the evening, when his parents 45 him to speak with me in English, he gets 46 . He lies on the floors, hides under the table and climbs on the furniture. When he finally stops 47 , and starts talking, it isn’t in English, but it isn’t in Chinese, 48 . He speaks in his own language. He 49 not be a very good student, but I’m not a great teacher. I just want to be his big brother 50 can speak in gibberish(胡言乱语) with him and help draw trucks, robots or spiders.
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