出车前()准备可以帮助实现节能减排。 A.选择良好行驶路线 B.熟悉车辆使用手册 C 发布时间:2020-03-04 15:43 │ 来源:www.tikuol.com 题型:多项选择题 问题: 出车前()准备可以帮助实现节能减排。A.选择良好行驶路线B.熟悉车辆使用手册C.装卸货物时避免多次进退掉头D.使列车停靠点便于起步
题型:多项选择题 下面短文中标有题号的十行中均有一处错误,请先用底线标明,然后将改 正后的答案写在相应题号后的横线上。 Dear Henry, I’m glad to receive your letter. It’s a pleasure for me to tell your my plan of this coming summer holidays after the exam. First of all, a good rest is need because I feel very tired after the hardly work of all these years. Of course, I’ll do some reading for funny. I’ll spend some time stay with my parents, talking with them but doing some housework. They’ve done so many for me, you know. If possible, I’ll take part for some social activities so that I can knew more about the society. Best wishes! 1. _________________ 2. _________________ 3. _________________ 4. _________________ 5. _________________ 6. _________________ 7. _________________ 8. _________________ 9. _________________ 10. _________________ 查看答案
题型:多项选择题 有机物分子中,当某个碳原子连接着四个不同的原子或原子团时,这种碳原子称为“手性碳原子”。例如,下列有机物分子中带“*”碳原子就是手性碳原子。该有机物分别发生下列反应,生成的有机物分子中含有手性碳原子的是A.与乙酸发生酯化反应B.与NaOH水溶液反应C.与银氨溶液作用只发生银镜反应D.催化剂作用下与H2反应 查看答案