赞题库-背景图
单项选择题

A．The best way to make workers more productive.
B．The increase in productivity.
C．The possible factors leading to workers’ greater productivity.
D．The problems in production.
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热门试题

单项选择题A．Only the U.K.B．Only China.C．Both the U.S. and China.D．Both the U.K. and China.

A．Only the U.K.
B．Only China.
C．Both the U.S. and China.
D．Both the U.K. and China.

单项选择题A．Psychologists.B．Workers.C．Professors.D．Managers.

A．Psychologists.
B．Workers.
C．Professors.
D．Managers.