搜题请搜索小程序“爱下问搜题”
问题 单项选择题

一般拖锚制动靠泊方法：（）.

A.多用于DW几千吨的船舶，一万吨船较少采用

B.多用于DW几万吨的船舶，一万吨船较少采用

C.多用于DW几千吨的船舶，一万吨船也多采用

D.多用于DW几万吨的船舶，一万吨船也多采用

答案

参考答案：A

完形填空
完形填空
       Today is Saturday, Ann    1   to school. Her parents Mr King and Mrs King    2   to work. They want
to go to the Haishan Park. The park is near their house, so they   3    to the park. It's 9 o'clock now. There are    4   people in the park. Some people chat(聊天).Some people    5   .Some people sing. There are a
lot of good places to   6    fun in the park. Ann plays on the merry-go-round(旋转木马)    7    other boys
and girls. Mr King     8   in the sports club. Mrs King dances in the music club. They   9    it's very   10    .
( )1. A. don't go      
( )2. A. don't go      
( )3. A. takes a walk    
( )4. A. no              
( )5. A. play the guitar
( )6. A. having          
( )7. A. having          
( )8. A. plays tennis    
( )9. A. think          
( )10. A. relax          		B. doesn't go    
B. doesn't        
B. take a walk    
B. many            
B. play guitar    
B. have            
B .and            
B. play the tennis
B. thinks          
B. relaxing        		C. not go          
C. not go          
C. takes the walk  
C. a lots of        
C. plays the guitar
C. has              
C. with            
C. plays the tennis
C. thinking        
C. relaxed          		D. goes                
D. go                  
D. take the walk        
D. lot of              
D. plays guitar        
D. enjoy                
D. or                  
D. play tennis          
D. look                
D. boring              
查看答案
选择题

下列对于溶液中的问题叙述正确的是

A．向冰醋酸中加水至配成醋酸稀溶液的过程中H+的浓度逐渐减小

B．对于水的电离而言，加入强酸、强碱会促进水电离，而加入弱酸、弱碱则会抑制水电离

C．5mL 0.02mol/L HCl溶液与5mL 0.02mol/L Ba(OH)2溶液混合，经充分反应后，如果溶液体积为10mL，则溶液的pH=12

D．常温下，将稀NaOH溶液与CH3COOH溶液混合，可能出现pH＞7，且c(OH—)＞c(Na+)＞c(H+)＞c(CH3COO—)的情况
查看答案