允许式线路纵联保护与闭锁式线路纵联保护相比（）。 A.前者的动作速度相对较快，但对通

发布时间：2018-10-05 21:05 │ 来源：www.tikuol.com

题型：单项选择题

问题：

允许式线路纵联保护与闭锁式线路纵联保护相比（）。

A.前者的动作速度相对较快，但对通道的要求也较高

B.后者的动作速度相对较快，但对通道的要求也较高

C.前者的动作速度相对较快，且对通道的要求也较低

D.后者的动作速度相对较快，且对通道的要求也较低

考点：继电保护工考试继电保护工考试综合练习题继电保护工考试综合练习题题库

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CDs
Price: $ 18.98
(Buy one and get the second for half price.)
Tel: (866)825-9215

               Apartment for Rent
Bedroom : 1              Bathroom: 1
Floor: 3                  TVs : 2
Hot water :24 hours        Deposit (押金)：$ 500
Price: $ 1,195--$ 1,350/three months
Tel: (866) 829-6944

Middle School English Teacher Wanted
A middle school English teacher is needed. Part-time . Two to five years’ teaching experience. If you are interested, please call Mrs Leone at St. Mary’s Middle School at 792-3178-1005.

Hip-hop America
“ Hip-hop America” is a fun and exciting dance class. There will be classes on Thursdays from November 7^th to March 20^th. Registration(注册) for classes will be held on October 31^st, at No. 2 Theater. The registration fee is $ 6 and class fees are $ 6 every week. For more information , call 434-799-6469. Class registration time is as followed:
4-7- year-olds from 6:00 pm to 6:45 pm
8 and older from 6:45 pm to 7:30 pm

小题1:How much will two CDs cost?

小题2:How many hours can you get hot water in the apartment?

小题3:Who can get the job as an English teacher?

A．An English teacher who has worked in a university for 1 year.

B．A graduate with one year’s teaching experience in a middle school.

C．Mrs Leone who comes form St. Mary’s Middle School .

D．An English teacher working in a middle school for 4 years.

小题4:If a 10-year-old boy wants to take hip-top classes for ten weeks, he should ____

A．register at 7:00 pm on October 31^st, at No.2 Theater

B．call 792-3178-1005 to find out more information

C．register at 6:30 on November 7^th, at No.2 Theater

D．pay $36 for the registration and class fees

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C.减少杂质附着

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A.生产者用于生长、发育和繁殖的总能量

B.流经各个营养级的能量总和

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