黄土汤中白术、附子与阿胶、地黄并用，是______之配伍法，方中反佐药是指______。
参考答案：刚柔互济 黄芩
若a＞0，b＜0，那么ab______0；若a＞0，b＞0，那么ab______0；若a＜0，b＜0，那么ab______0．
The old house of this area had to be ______ immediately so that the government could carry its flower-style-city programmer out.
A．torn up
B．torn down
C．torn away
D．torn out
