马斯洛认为人的价值体系中有两类需要：（）和（）。
参考答案：生理需要；心理需要
影响龋病发生发展的因素有（）
A.年龄和性别
B.种族和家族
C.遗传
D.地理因素
E.以上全是
The room was almost empty_______ there were some old chairs with their legs broken.[ ]
A. except for
B. except that
C. besides
D. except
