促进健康的行为特点有
A．有序性
B．规律性
C．适宜性
D．差异性
E．和谐性
参考答案：A,B,C,E
—What _________ Nancy _________?
—She is friendly, she always helps others. [ ]
A. is; like
B. does; look like
C. looks; like
D. does; like
新建一座危险废物填埋场，该场址的天然基础层的厚度正确的是( )m。
A．1
B．2
C．3
D．0.5
E．4
