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问题 选择题
如图所示，AB是一质量为m的均匀细直杆，A端靠在光滑的竖直墙壁上，B端置于水平地面上，杆身与竖直方向夹角为θ，杆与地面的摩擦系数为μ，保持平衡，则此时杆与地面的摩擦力为（　　）

A．mgtgθ

B．mgsinθ

C．μmg

D．μmg

答案

答案：A

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完型填空。
    When Susan was at university, she often went to   1   library. It was a beautiful building. She liked it because it
was nice and quiet. Sometimes   2   the library she worked on the computer and did   3   research. At other times
she read history books. She discovered many   4   things about the past. She learnt about how difficult life was in
the past. She often   5   a notebook with her so that she could make notes in it.
( ) 1. A. the         
(     ) 2. A. on          
(     ) 3. A. A. some     
(     ) 4. A. A. interest     
(     ) 5. A. bought       		B. a            
B. by           
B. any          
B. interested        
B. took        		C. an         
C. at           
C. other        
C. interesting       
C. saw         		D. /          
D. for        
D. another                
D. right      
D. put      
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多项选择题

属于录用程序的有（）。

A.发布招考公告

B.资格审查

C.考试

D.考察和体检
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