可以出现黑粪的原因有()。
A.进食禽畜血制品
B.服用铁剂
C.下消化道出血
D.口腔手术后
E.服用铋剂
参考答案:A, B, C, D, E
叶长卵形或卵状披针形,叶端急尖,叶基稍不对称。无毛或近无毛的药材为()
A.狭叶番泻叶
B.尖叶番泻叶
C.耳叶番泻叶
D.罗布麻叶
E.大青叶
She an old friend of hers yesterday while she was shopping att the department store.
A.turned down
B.dealt with
C.took after
D.came across