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A.Use of computers in banks.
B.Conveniences brought about by computers in business.
C.Significance of automation in commercial enterprises.
D.Credit cards in the business world.
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单项选择题A.She should keep leaning forward.B.She should cross.C.She should go step by step like a crab.D.She should point the tips together.

A.She should keep leaning forward.
B.She should cross.
C.She should go step by step like a crab.
D.She should point the tips together.

单项选择题A.The woman is driving too fast.B.The woman is driving at a slow speed.C.The woman has broken a traffic rule.D.The woman has parked her car in a wrong place.

A.The woman is driving too fast.
B.The woman is driving at a slow speed.
C.The woman has broken a traffic rule.
D.The woman has parked her car in a wrong place.