对现代心理卫生运动的兴起作出直接贡献的先驱者当属美国人（）
A.马斯洛
B.罗杰斯
C.梅耶
D.比尔斯
参考答案：D
社会物流、行业物流和企业物流是按照物流活动的空间范围来分类的。
— You finally made it, didn't you?
— Yes, _____ your help, I wouldn't have succeeded. [ ]
A. only if
B. but for
C. due to
D. thanks to
