关于髋关节脱位复位后正确的处理是()
A.休息2周即可正常活动
B.牵引3周
C.拄拐3个月
D.应用活血化瘀药物
E.随访至少1年以上
参考答案:B, C, D, E
Make a tentative guess _____ Peking Man _____ have done and used thousands of years ago. [ ]
A. that; may
B. that; must
C. what; may
D. what; should
几何符号