钻机转向困难时，（）强行硬扭。
A.视情况而定
B.可以
C.不可
参考答案：C
The key to our success was having the courage to take on any job, and then being creative in our _______ to getting it finished.
A．measure
B．approach
C．methods
D．chance
慢性疼痛不需要评定的项目是（）
A.残疾评定
B.关节功能评定
C.心理认知行为功能评定
D.心肺功能评定
E.McGill疼痛问卷调查
