措施费用主要包括（）。 A.机械使用费 B.工程定额测定费 C.差旅费 D.文明施工

Many middle school teachers are too heavily _____ with teaching to engage in research work.     [ ]

A. burdened                  

B. related    

C. associated                

D. provided

普通单开道岔由哪几部分组成？

单句改错。

1. Can you tell me where I can go to the bookstore?                              

2. Do you know how I can buy some stamps?                                   

3. How can I get on the nearest hospital?                                       

4. No one of us knows the way to the People's Park.                              

5. Could you please tell me how you are getting alone with your

classmates?          

最长的胎头径线是

A．双顶径

B．枕额径

C．枕颏径

D．枕下前囟径

E．双颞径

路基中修工程主要是指以下内容（）

A、路基基层重新翻修

B、局部加宽、加高路基

C、清除大坍方或集中坍方

D、整段加宽路基、改善线型

E、改建较大挡土墙