JZ-7型制动机的自阀手柄移至制动区,而机车起紧急制动作用的原因有哪些? 发布时间:2017-09-14 13:13 │ 来源:www.tikuol.com 题型:问答题 简答题 问题: JZ-7型制动机的自阀手柄移至制动区,而机车起紧急制动作用的原因有哪些?
题型:问答题 简答题 阅读下面材料,根据材料内容判断句子正误(正确用“T”表示,错误用“F”表示)。 Here are some short messages. Emma got all of them on her mobilephone yesterday. ● Hey, Emma, I'm going to have a party this weekend. Would you come and join us? (From Susan 13823636790) ● Emma, Mr. Lee said your computer is OK now. You can go and get it from 10:00 a. m. to 6: 00 p. m. (From James 13654243666) ● Emma, call me, please. (From Vicky 13096752112) ● Emma, buy some fruits on your way home. Thanks. (From Jessie 13096758113)( )1. These messages are on Emma's mobile phone. ( )2. Emma can get her computer at 8 :00 p.m. ( )3. Vicky asked Emma to call back. ( )4. If Emma wants to go to the party, she can call at 13823636790.( )5. Jessie asked Emma to buy some fruits on her way to school. 查看答案
题型:问答题 简答题 欲在1:2000地形图上选出一条坡度不超过5%的公路线,若该图的等高距为1m,在图上线路经过相邻两条等高线间的最 * * 距为()。A.0.01mB.0.015mC.0.02mD.0.05m 查看答案