搜题请搜索小程序“爱下问搜题”
问题 填空题

如图所示，甲、乙两个粗细不同的容器里盛有质量相等的不同液体，比较液体对容器底部的压强

P甲                 P乙，液体对容器底部的压力F甲                  F乙。 （填“大于”“等于”或“小于”）

答案

小于，等于

补全对话，情景问答
问答配对。从B栏中选出与A栏相应的答语。
A  
B
( )1. Are all the children students?                      
( )2. Does Miss Wang teach Chinese?                
( )3. Can you go to school with me?                 
( )4. Do you have an apple?                        
( )5. Do the farmers work here?                      
( )6. Is your uncle an office worker?                  
( )7. Does your father like tea?                     .
( )8. Where's he from?                            
( )9. What does she like?                          
( )10. What do you do?                          		A. She likes tea. 
B. Yes, they do.
C. Yes, I do.
D. Sorry, I can't.
E. Yes, he is.
F. Yes, they are. 
G. I am a businessman.
H. Yes, he does.
I. No, she doesn't.    
J. He's from England.  
查看答案
单项选择题

以下哪种方法，通常不用于骨密度测量（）

A.最大密度投影法

B.QCT法

C.双能量吸收法

D.双光子吸收法

E.单光子吸收法
查看答案