办理进口食品报检时，应提供输出国使用的( )、生产食品的原料、添加剂、加工方法等有关资料及标准。

A．农药

B．化肥

C．除草剂

D．熏蒸剂

Rapid application development (RAD) systems purport to lighten the developer’s (46) by making it easy to program an application with simple intuitive steps.
RAD tools (47) the developer everything needed to construct a fully functional application quickly and easily. They make short work of modifying the developed product to (48) changes after the program is finished. Applications developed with RAD tools are constructed as they are envisioned. As an application’s real usefulness (49) , the developer armed with RAD tools should be able to (50) on new features with little fuss.

A．burden

B．trouble

C．task

D．weight