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What does the new production line save（）

A.Water and electricity.
B.Transportation expenses.
C.Raw materials.
D.Time and space.

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单项选择题

A.Eight hours.
B.Two hours and a half.
C.Three hours and a half.
D.Four hours.

单项选择题

A.Last month.
B.Last week.
C.Two Weeks ago.
D.Two months ago.

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