( )是指物业服务收费水平应当与我国经济发展状况和群众现实生活水平协调一致，既不能超出业主的实际承受能力，也不能一味降低收费水平，进而造成业主房屋财产的贬损和制约群众生活水平的提高。
A. 合理原则
B. 公开原则
C. 公平原则
D. 费用与服务水平相适应的原则
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房地产开发企业四级资质持有资格证书的专职会计人员不少于( )人。
A. 1
B. 2
C. 3
D. 4
The babies Would "smile and bubble" at the lights because ______.
A. they succeeded in "switching on" the light
B. the sight of the lights was interesting
C. they need not turn back to watch the lights
D. the lights were directly related to some basic "drives”
Bill put the target there ______.
A. a month ago
B. less than a month ago
C. more than a month ago
D. several days ago
物业管理活动的基础是( )。
A. 物业管理合同
B. 物业服务合同
C. 物业合作合同
D. 物业管理协议
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