参苏饮与败毒散的组成中均含有的药物是()
A.前胡、茯苓
B.柴胡、川芎
C.羌活、独活
D.木香、枳壳
E.半夏、苏叶
参考答案:A
—Can you see a bird ______ the tree?
—No, I can't see ______.[ ]
A. in; any
B. in; a
C. on; some
D .in; some
混凝土预制构件产品进厂验收时,外观检查不少于( )。
A.2% B.3% C.4% D.5%