Speaker A: That was a great dinner. Thanks a lot. You'll have to come to our place sometime.Speaker B: ______

A．I'm really very sorry. You see, I haven't prepared anything delicious for you.

B．Come again whenever it is convenient to you, won't you

C．Why do you have to leave in a hurry Do you have anything urgent to do

D．I'm glad you enjoyed it. Hope to see you again soon.

CIMS着重解决产品设计和经营管理中的（）。

A、计算机网络技术

B、系统信息集成

C、计算机接口技术

D、计算机辅助制造系统