高度在24M以上的双排脚手架应在外侧立面整个长度和高度上连续设置剪刀撑。
参考答案：对
All these gifts must be mailed immediately _____ in time for Christmas. [ ]
A. in order to have received
B. in order to receive
C. so as to be received
D. so as to be receiving
以下是慢性腹泻的病症类型，除了（）。
A.渗透性腹泻
B.渗出性腹泻
C.分泌性腹泻
D.运动功能异常性腹泻
E.医源性腹泻
