下列哪种用药方法是错误的（）
A.旋覆花包煎
B.生大黄后下
C.鹤草芽入煎服
D.阿胶烊化兑服
E.附子先煎
参考答案：C
I the chair over to the window. Which of the following has the similar meaning with the underlined
word? [ ]
A. pushed
B. dragged
C. moved
D. passed
按随机原则抽样即（）。
A.随意抽样
B.有意抽样
C.无意抽样
D.选取样本时要求总体中每个单位都有相等的机会或可能性被抽中
