大便水样且起病于秋冬季节,多见于( )
A.轮状病毒肠炎B.致病性大肠杆菌肠炎C.生理性腹泻D.真菌性肠炎E.急性坏死性肠炎
参考答案:A
At the sight of the scene of war, my _____ race back more than 50 years to the dark days of 1940.
A.minds
B.memories
C.thoughts
D.brains
肺炎链球菌的主要致病物质是()
A.菌毛
B.侵袭性酶
C.荚膜
D.毒素
E.菌体外膜蛋白