倡导“绿色旅游”，主要是针对[ ]
A、乱砍滥伐问题
B、破坏文物古迹问题
C、环境污染问题
D、滥捕野生动物问题
答案：C
The happiest people don't have the best of everything. They just _______ everything. [ ]
A. get away from
B. make the best of
C. fix attention on
D. catch up with
相对而言，属于阴的基本物质有( )
A．气
B．血
C．津
D．液
E．精
