He _____________ sleeps in the morning.[ ]
A. sometime
B. some times
C. sometimes
答案:C
As the mid-term examination was drawing near,the teachers were busy___________the test papers. [ ]
A. preparing
B. preparing for
C. to prepare
D. to prepare for
肱骨中下1/3段骨折容易产生的并发症是()
A.缺血性骨坏死
B.腓总神经损伤
C.桡神经损伤
D.后 * * 损伤
E.动脉损伤