—Would you like to come to dinner this Sunday, Xiao Ming?

—________. [ ]

A. I'd love to, but I have lots of things to do.

B. Oh, no. That'll be too tired.

C. I'll stay at home.

D. Yes, please.

疾控中心的职责是（）

A.制定传染病防治规划

B.实施传染病预防控制规划、计划和方案

C.决定增加或减少法定管理传染病的病种

D.成立应急处理指挥部

E.封锁疫区