既能清热凉血，又能活血散瘀的药物是
A．生地黄
B．败酱草
C．红藤
D．玄参
E．牡丹皮
参考答案：E
One impact that the burning of ______ fuels has had on the Earth's environment has been the increase of carbon dioxide in the earth's atmosphere.
A．vehicle
B．oil
C．gas
D．fossil
尿血与血淋的鉴别，主要在于（）
A.尿色的深浅
B.尿量的多少
C.尿味的情况
D.有无尿痛
E.以上均非
