气血两清的代表方剂是（）
A.清营汤
B.桃仁承气汤
C.犀角地黄汤
D.羚角钩藤汤
E.清瘟败毒饮
参考答案：E
土壤液态水主要以毛管水、束缚水和（）三种形式存在于土壤中。
The view ____ many scientists hold is ____ too much emission of carbon dioxide is destructive.
A．what; that
B．that; which
C．that; that
D．which; which
