單項(xiàng)選擇題The lowest point between two waves is called().

A.though
B.tough
C.through
D.trough


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1.單項(xiàng)選擇題In summer, monsoon over the South China Sea blows from().

A.northeast
B.southwest
C.southeast
D.northwest

2.單項(xiàng)選擇題As to the torn bags,I’ll tell the shipper to()them up.

A.Resew
B.Rejoin
C.Renail
D.Resolder