“关节间隙消失，纤维性和骨性强直，关节半脱位”属于类风湿关节炎X线分期的哪一期()
A．Ⅰ期
B．Ⅱ期
C．Ⅲ期
D．Ⅳ期
E．V期
参考答案：D
When she heard that she had been admitted by Qinghua University, she jumped with ________. [ ]
A. thrill
B. fright
C. surprise
D. terror
一种衬衫每件28元，180元钱估计可买______件．
