如果船舶排出污水的含油量为15ppm,每天排水10t,试问该轮每天排入长江中的油是( 发布时间:2019-02-19 18:06 │ 来源:www.tikuol.com 题型:单项选择题 问题: 如果船舶排出污水的含油量为15ppm,每天排水10t,试问该轮每天排入长江中的油是()kg。A.0.15B.1.5C.15D.150
题型:单项选择题 某中学正在举行班级对抗赛,张明明同学是短跑运动员,在百米竞赛中,测得他在6.25s末的速度为10.4m/s,12.5s末到达终点的速度为10.2m/s,则他在全程中的平均速度为( )A.10.3m/sB.10.2m/sC.9m/sD.8m/s 查看答案
题型:单项选择题 The National Education Department says that school safety has set off alarm bells with frequent reports of serious accidents ________ students got injured or killed.[ ]A. thatB. in whichC. by whichD. for which 查看答案