问题
单项选择题
城网可分为( )。
A．送电网和配电网
B．环状网和树状网
C．环式网和格式网
D．放射式网和多回线式网
答案
参考答案：A
解析：B项中的环状网和树状网为城市给水管网的布置形式。C、D两项为城网的典型结线方式。
搜题请搜索小程序“爱下问搜题”
城网可分为( )。
A．送电网和配电网
B．环状网和树状网
C．环式网和格式网
D．放射式网和多回线式网
参考答案：A
解析：B项中的环状网和树状网为城市给水管网的布置形式。C、D两项为城网的典型结线方式。
| 完形填空。 | |||
| I'm jim I'm a l .My 2 name is Smith This is my pencil case 3 is very nice. I put my pen, ruler and _ 4 _ in my pencil case. I like it very much. That is my bookcase. My books and CDs 5 in it. I'm very healthy. I 6 lots of fruit and vegetables every day. I__7 . chicken or ice cream They are not good for my health. I have a great sports _ 8 . I have 8 tennis rackets, 9 basketballs and 12 baseballs. And I play _ 9 _ every day. I like to _ 10 .sports games on TV, too. | |||
| ( )1. A. girl ( )2. A. first ( )3. A.It ( )4. A. math book ( )5. A. is ( )6. A. it ( )7. A. like ( )8. A. collection ( )9. A. sports ( )10. A. look | B. boy B. one B. You B. eraser B. am B. eat B. likes B. fun B. computer game B. watch | C. English C. family C. She C. computer C. are C. eats C. don't like C. class C. CD C. play | |