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商业银行经营原则中，安全性与盈利性成正比。
A. 对
B. 错
存贷利差是我国商业银行主要利润来源。
A. 对
B. 错
Reading: What do we need for life? (1)I have no doubt that we are polluting the environment beyond redemption.at is the meaning of the ‘environment’in the sentence?
A. the conditions that affect the behaviour and development
B. the natural world in which people, animals and plants live
C. the complete structure within which a user, computer or program operates
D. the totality of surrounding conditions
Which is NOT the source of Air Pollution?
A.Waste gases from automobiles
B.Burning coal to heat homes
C.Sewage and waste water from homes and factories
D.Emissions of harmful gases from factories
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