放置宫内节育器的时间是（）。
A.月经干净3～7天
B.月经干净2天内
C.月经干净8～10天
D.月经前3～5天
E.月经期
参考答案：A
骨折复位原则上愈早愈好，伤后( )小时内手法操作容易，复位效果较佳。
A．1～5
B．1～6
C．6～12
D．12～24
E．5～12
—Would you like to go hiking with us this Sunday?
—I'd like to, but I'll have _______ to do. [ ]
A. special something
B. something special
C. anything special
D. special anything
