能排月经、分泌带下，娩出胎儿，又称为预防外邪入侵的第二道关口是
A．子门B．毛际C．胞宫D． * * E．阴户
参考答案：A
预防颞下颌关节紊乱病的措施中，错误的是（）
A.保持乐观情绪
B.注意关节保护
C.纠正不良咀嚼习惯
D.多食质硬食物
E.避免长时间大张口
William Sidney Porter, known as O. Henry, is most famous for ______.
A. his poems B. his playsC. his short stories D. his novels
