发生鸡大肠杆菌病时，在心包膜表面形成的—层灰白色假膜属于（）
A.浮膜性炎
B.固膜性炎
C.变质性炎
D.增生性炎
E.以上都不是
参考答案：B
根据下列图片完成下列句子。
1. The telephone is the .
2. There are many the bed.
3. The man is the .
4. The boy is the .
内啮合圆柱齿轮传动,两齿轮的转向相反。
The telephone is the .
There are many the bed.
The man is the .
The boy is the .