问题
单项选择题
一堆沙重480吨,用5辆载重相同的汽车运3次,完成了运输任务的25%,余下的沙由9辆同样的汽车来运,几次可以运完()
A.4次
B.5次
C.6次
D.7次
答案
参考答案:B
解析:
本题主要考查工程的相关知识 [解题要点] 求出一辆汽车每次能运沙多少吨 由题意知,一辆汽车每次能运沙(吨),则余下的沙用9辆汽车(次)可以运完。故选B。
一堆沙重480吨,用5辆载重相同的汽车运3次,完成了运输任务的25%,余下的沙由9辆同样的汽车来运,几次可以运完()
A.4次
B.5次
C.6次
D.7次
参考答案:B
解析:
本题主要考查工程的相关知识 [解题要点] 求出一辆汽车每次能运沙多少吨 由题意知,一辆汽车每次能运沙(吨),则余下的沙用9辆汽车(次)可以运完。故选B。
阅读短文,根据短文内容,从所给的六个选项中选出可以填入空白处的最佳逸项.使短文意思完整、连贯。(有两项为多余选项) ’ ![]() "I am happy that he is still alive," said Charles. "He is 67--no longer a young man—and everything is going up in flames. When he saw me, he shouted, " 小题3: " When Charles told him he didn’ t know, Edison said, “ Find her. 小题4: She will never see anything like this. " The next morning, Edison looked at the damage and said," There is great value in disaster (灾难). All our mistakes are burnt. We can start again. " Three weeks after the fire, Edison showed his first phonograph (留声机 ). To invent something, you need a good imagination and a lot of junk.
|