石膏入汤剂的用法是（）
A.先煎
B.后下
C.包煎
D.另煎
E.冲服
参考答案：A
等腰三角形顶角的外角与一个底角的外角和为265°，则它的顶角大小为______度．
It’s such a good place ______ everybody wants to visit _____ it is well known all over the world .
A．which , that
B．as , as
C．as, that
D．that , which
