变压器差动保护产生不平衡电流的原因有哪几点？ 发布时间：2017-10-05 00:39 │ 来源：www.tikuol.com 题型：问答题 简答题 问题： 变压器差动保护产生不平衡电流的原因有哪几点？
题型：问答题 简答题 完形填空。 Sam 1 Jim are 2 near Mr Green's house. They- are throwing a Frisbee (飞盘). Sam can't throw 3 Frisbee. Jim says to him, " 4 throw it like this." "Like this?" "Yes, good!" "Look out (当心)!" "Oh 5 !" Mr Green's 6 is broken. 7 is drinking 8 under a tree. "I'm 9 , Mr Green " Sam says. Mr Green says, "It doesn't matter. Please 10 play near my house next time (下次)."( )1. A. and ( )2. A. plays ( )3. A. a ( )4. A. Listen ( )5. A. dear ( )6. A. coat ( )7. A. I ( )8. A. rice ( )9. A. sorry ( )10. A. doesn'tB. or B. play B. the B. Look B. Dad B. bed B. She B. tea B. nice B. do C. but C. playing C. an C. Watch C. MumC. window C. He C. noodles C. fine C. don't 查看答案