第3题: [单项选择]A. A week ago. B. At nine thirty p.m. C. On Wednesday. D. It’s time to get on the train. 参考答案:B 答案解析:[听力原文] What time is the last train to Guangzhou
第5题: [单项选择]For our bodies to function properly, we should A. sleep for at least eight hours per night B. believe that we need less sleep as we age C. adjust our activities to the new inventions D. be able to predict the rhythms of our biological docks 参考答案:A
第6题: [单项选择]自动着陆的下滑角范围是:() A. 2°至3° B. 2.5°至3.5° C. 2.15°至3° D. 2.5°至3.15° 参考答案:D
第9题: [简答题] 有三个不同的数字(其中没有零),用它们可能组合的所有各三位数的和是2286,请将_______补全。 10 FOR A=1 TO 7 20 FOR B=_______TO 8 30 FOR C=_______TO 9 40 IF 222*(A+B+C)=2886 THEN P RINT"A=";A,"B=";B,"C=";C 50 NEXT C,B,A 60 END 参考答案:
10 FOR A=1 TO 7
20 FOR B=A+1 TO 8
30 FOR C=B+1 TO 9
40 IF 222*(A+B+C)=2886
THEN P
RINT"A=";A,"B=";B,"C=";C
50 NEXT C,B,A
60 END
第26题: [单项选择]关于电弧焊接头的力学性能检验试样选取,下列叙述错误的是( )。 A. 在现浇混凝土结构中,应以300个同牌号钢筋、同形式接头作为一批 B. 在房屋结构中,应以在不超过两个楼层中的200个同牌号钢筋、同形式接头作为一批 C. 每批电弧焊接头应随机切取3个接头,做拉伸试验 D. 在装配式结构中,可按生产条件制作模拟试件,每批3个做拉伸试验 参考答案:B