口腔念珠菌病病损区涂片直接镜检可见()。
A.菌丝和孢子
B.梭状杆菌和螺旋体
C.病毒水疱和包涵体
D.大量细菌及白细胞
E.分支杆菌
参考答案:A
看图片,将与图片相符合的句子的标号填在括号内。
A. He can read books now.
B. My grandmother cooked on a fire many years ago.
C. There weren't any aeroplanes two hundred years ago.
D. I had an old telephone three years ago.
下列不属于水体中有毒污染物的是()
A.重金属
B.多氯联苯
C.病原体
D.苯并芘