咽结合膜热的病原体为()
A.B组链球菌
B.柯萨奇病毒
C.腺病毒
D.肺炎支原体
E.葡萄球菌
参考答案:C
电路从电源(包括信号源)()的信号,统称为激励。
A.暂态
B.稳态
C.输入
D.输出
He is not a man to get along with, and I never feel ________ in his company.
A.with ease
B.at ease
C.for ease
D.in ease