搜题请搜索小程序“爱下问搜题”
问题 多项选择题

滤膜测尘法的主要器材有______。

A．滤膜
B．检知管
C．采样器
D．抽气装置
E．天平

答案

参考答案：A,C,D,E

阅读理解
                                                  10% Off
       Show this voucher(优惠券)at the Book Store to get a 10% discount(减价) on any books you buy. We have lots of books to choose from, including children's books, novels, travel guides and hobbies.
You're sure to find something that you will enjoy.
        Assistant Wanted
For a busy restaurant work on weekends. All meals are free. Call at 4323577 for more information.                                 		                           Lost Cat
Help me find my pet cat! She is 4 years
old. She has long white hair and a long tail. Her name is Cathy. Call Carrie at 2853527.
Choose the best choice from A、B or C according to what you read.
1. If Mary wants to be an assistant, she can phone the number______. 
A. 2853527              
B. 4323577
C. 4332577
2. You can get a 10% discount on any books if you______at the Book Store.
A. show this voucher
B. buy some tickets
C. buy some gifts
3. There are several kinds of books on sale except______.     
A. children's books
B. travel guides
C. magazines
4. ______lost the white cat.       
A. Cathy
B. The assistant
C. Carrie
5. The assistant has lunch at the restaurant, she should______.        
A. pay nothing            
B. call 4323577
C. work on Monday  
查看答案
填空题

在（）电路中，等效电阻等于各个电阻之和。
查看答案