– Would you mind if I keep the window closed? -        I also feel a little cold.

A．None of my business.

B．Surely!

C．Certainly not.

D．Oh, I see.

中毒型菌痢好发的年龄是（）

A.新生儿

B.婴幼儿

C.2～7岁儿童

D.中青年人

E.老年人