搜题请搜索小程序“爱下问搜题”
问题 辨析题

唐朝陶瓷业发达，最著名的瓷器是白瓷。

错误：___________

改正：___________

答案

错误：白瓷；改正为：唐三彩

完形填空
完形填空。
     Umbrellas are common in our daily life.  On rainy  days,  many  people  hold  them  to  prevent  the
   1  .  But  it's  not  easy  to  hold  an  umbrella   if   there  is  a   heavy  rain   and   2   wind.  And   it's
harder  to  make a  phone  call  or  ride  a  bike   3   an  umbrella in  the  hand.  An  American  named
Alan Kaufman and his company  4   6 years inventing a hand-free umbrella.  5   , they made it.
     They called it Nubrella. Just touch a  button (按钮),   and  the  Nubrella  will  open  6    .  With the
help of its "shoulder support (支持)", the umbrella can rest on the user's   7   . So the user needn't hold
the umbrella any more. He can walk with hands   8  even in the strong wind.
     The hand-free umbrella is $59.94 each.  People all around the world like it very much.  Because of
this smart    9   ,  they can use their phones to  talk and  send  short  messages  in  the rain now.     10  
in the rain under a Nubrella is really cool, isn't it?
( )1. A. wind        
( )2. A. tall        
( )3. A. by          
( )4. A. used        
( )5. A. At first    
( )6. A. easily      
( )7. A. feet        
( )8. A. free        
( )9. A. discovery    
( )10.A. Lying        		B. water        
B. short        
B. without      
B. took        
B. At last      
B. hardly      
B. legs        
B. busy        
B. magazine    
B. Flying       		C. sun            
C. strong          
C. with            
C. paid            
C. At most        
C. nearly          
C. shoulders      
C. difficult      
C. book            
C. Walking         		D. snow            
D. light            
D. under            
D. spent            
D. At least        
D. mostly          
D. hands            
D. hard            
D. invention        
D. Driving          
查看答案
问答题 简答题

什么是零序方向过电流保护？
查看答案