问题 选择题

小明对所学知识进行归纳,其中有错误的一组是(  )

A.常见的化肥:氯化铵、硝酸钾、过磷酸钙

B.常见干燥剂:石灰石、浓硫酸、生石灰

C.常见的合金:不锈钢、镁铝合金、生铁

D.常见营养物质:蛋白质、无机盐、维生素

答案

A、氯化铵、硝酸钾、过磷酸钙分别是氮肥、复合肥、磷肥,故选项知识归纳正确.

B、常见干燥剂的有浓硫酸、生石灰,石灰石不具有吸水性,不能作干燥剂,故选项知识归纳有错误.

C、不锈钢、镁铝合金、生铁均属于合金,故选项知识归纳正确.

D、蛋白质、无机盐、维生素均属于六大营养素,故选项知识归纳正确.

故选B.

完形填空
完形填空
       One of the amazing things about the World Wide Web is that anyone can create a   1   page. If
people find your page interesting, they will come to   2   it .If lots of  people like your page, then you
have created something of value. The whole idea of a TV station is to create a place that attracts lots
of people. Then the station's owner can charge companies for   3   on TV.  A web page is like a smart
TV station. If yours becomes very popular, then you can   4   ads on it.  That is one form of "value".
There are other forms as well ,especially for teenagers. A popular page allows   5   to speak to and
educate others, gives you a chance to meet people, and opens doors of chances that you might not   6    
       If you want to create your own page. you have two   7  . You can create a page that says . "Hi. my
name is Suzy and here is a picture of Binky. my cat.  My favorite bands are ..." That is fine. but it is not
very interesting to others except your close. The other choice you have is to create a site that other
people find   8  . Pick something you enjoy or know a lot about and create the best page on the net
about it.
       The people from all over the world will come to visit your page because you are   9   something of
value.
( )1. A. book          
( )2. A. cost          
( )2. A. watching      
( )4. A. buy          
( )5. A. me            
( )6. A. wait          
( )7. A. changes      
( )8. A. useful        
( )9. A. offering                              
B. magazine      
B. visit        
B. performing    
B. sell          
B. her          
B. stay          
B. choices      
B. boring        
B. taking        
C. newspaper    
C. spend        
C. advertising  
C. borrow        
C. him          
C. live          
C. points        
C. foolish      
C. helping                    
D. web            
D. pick          
D. playing        
D. lend          
D. you            
D. expect        
D. views          
D. big            
D. reading                       
单项选择题