应首先作哪种辅助检查
A．右髋关节x线侧位片
B．右髋关节X线正位片
C．双侧髋关节X线正、侧位片
D．右髋关节X线正、侧位片
E．MRl
参考答案：C
On the morning of Christmas day, we often greet each other and say,"_____" [ ]
A. Happy New Year!
B. Merry Christmas!
C. Good luck!
D. Best wishes to you!
紫外线中能累及真皮的部分是()
A．UVA
B．UVB
C．UVC
D．UVD
