【判断题】色相方面,红、橙色 具有兴奋感,蓝、青色 具有沉静感 。
【简答题】begins Class the in afternoon 2:00 at________________________________________________________________.
【简答题】选词填空(只写单词前面的字母序号) A. walks B. think C. says D. let E. sees F. begins G. holds H. try 1. ________ your best and you can be a very good speaker. 2. I don’t ________ you are right. 3. The old ma...
【简答题】根据句意和首字母提示完成下列句子。 1. They can see many l _____ on the tree in summer. 2. Class begins! Please be q______. 3. A koala usually r _____ ten hours every day. 4. Elephants like to eat g______. Rabbits like...
【多选题】直流系统发生正极接地或负极接地对运行有哪些危害( )?
A.
直流系统发生正极接地,有造成保护误动作的可能
B.
直流系统发生正极接地,可能使跳闸或合闸回路短路
C.
直流系统负极接地时,可能造成保护或断路器拒动
【简答题】直流系统发生正极接地或负极接地对运行有哪些危害?
【判断题】判断题:组织设计的原则包括命令统一、人人有事做、权责对等原则。
【简答题】对下面句中划线部分提问 1. Those boys broke the windows. 2. The train leaves at eight . 3. I spoke to my teacher about this. 4. That’s my coat. 5. She sings beautifully . 6. The book is on the desk. 用括号的特殊疑问词把句子改...