在综合理财服务中，商业银行需要将负责理财计划或产品相关交易工具的交易人员与负责本行自营交易的人员分离，并定期检查、比较两类交易人员的交易状况。()
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Which of the following is true about registered Turk users？
A. They get rewards by solving posted problems.
B. They set up a separate account as companies do.
C. They pay out fees to other users for their help.
D. They receive cash after successfully performing HITs.
Amazon is successful with Turk is probably because
A. Turk has very strong software infrastructure developing potentials.
B. its previous model has laid a solid foundation for an extension.
C. its system is based on artificial artificial intelligentce.
D. Turk is profitably adaptive to almost any software infrastructure.
由于美元是黄金的主要标价货币，因此当美元汇率下降时，只有黄金价格上升才能使黄金市场达到均衡。()
A. 正确
B. 错误
Corn-based ethanol might not be chosen as an alternative because
A. carbon reduction in both fuel production and burning might be hard.
B. California also intends to cut down emissions from new vehicles.
C. it is almost impossible for vehicle fuel to produce 10% less carbon.
D. California's corns are chiefly transported by cars and trucks.
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