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【多选题】
下列各项,属于影响企业利润因素的有:A.
股东权益
B.
收入
C.
费用
D.
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【简答题】"," the boy finally said, "shouldn't I be learning more moves? ” , "This is the only move you know, but this is the only move you ’ ll ever need to know , ” the teacher (28) _____ .
【简答题】What does "dress neatly" mean? It means that you shouldn't wear __________.
【简答题】Photography was once an expensive , laborious ordeal reserved for life's greatest milestones . Now , the only apparent cost to taking infinite photos of something as common as a meal is the space on y...
【单选题】按《公共场所空气中氨测定方法》GB/T18204.25-2000靛酚蓝分光光度法规定的条件采样10min（5L），样品可测氨浓度范围为（）。
A.
0.01～0.1mg/m 3
B.
0.01～2mg/m 3
C.
0.1～5mg/m 3
D.
0.1～10mg/m 3
【简答题】《公共场所空气中氨的测定方法》(GB/T 18204.24——2000)中的靛酚蓝分光光度法,适用于 , ,和 空气中氨的测定。
【单选题】《公共场所空气中氨测定方法》GB/T18204.25-2000要求空气采样器：流量范围0～2L/min流量稳定，使用前后用皂膜流量计标准系统的流量误差应小于（）。
A.
±1%
B.
±3%
C.
±5%
D.
±10%
【单选题】You shouldn't use "Yours faithfully" - it's too __ for this kind of personal letter.
A.
gradual
B.
nasty
C.
genetic
D.
formal
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