尺桡骨干双骨折的固定时间为（）。
A.4～6
B.6～8
C.8～10
D.6～7
E.4～10
参考答案：B
临房早泄，面白神疲，少气乏力，腰酸耳鸣，舌淡脉弱，最宜诊断为（）
A.肾阳虚证
B.肾气不固证
C.肾阴虚证
D.肾精不足证
E.心肾不交证
China Business Daily reported the 60% discounts on some Beijing-shanghai flights have now slipped back to 20% _______ one day in advance.
A．when books
B．when to book
C．when booking
D．when booked
