每种产品在其基本模型和功能之外的附加功能和配件，称之为( )。

A．产品特色

B．产品定位

C．附加产品

D．核心产品

—Did you have a good trip?

—Yes, the light rain didn't stop us ______ the trip. [ ]

A. to enjoy

B. enjoy

C. from enjoying

D. in enjoy