“谁污染谁治理”原则属于环境影响评价中的（）。

A．污染者负担

B．受益者补偿

C．开发者恢复

D．预防为主、防治结合

When you work with a computer, it leaves some useful error messages or window (66) to help you with your work.

A．hints

B．prompts

C．introductions

D．guides