單項(xiàng)選擇題The Loran needs().

A.repairing
B.to repair
C.repairs
D.have repaired


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1.單項(xiàng)選擇題The meaning of ebb tide is that().

A.tide is falling from high water to low water
B.tide is rising from low water to high water
C.tide is reaching to a highest level
D.tide is reaching to a lowest level

2.單項(xiàng)選擇題The pilot station()close west of the end of the breakwater.

A.is stayed
B.is situated
C.is placed
D.is located

3.單項(xiàng)選擇題The portable radio apparatus means().

A.the radio apparatus fitted on the portside
B.the radio with a portable equipment
C.the radio equipment which is easily movable
D.the portable radio with some apparatus

4.單項(xiàng)選擇題The quays are not connected()the railway system.

A.to
B.for
C.on
D.with

5.單項(xiàng)選擇題The remarks are not similar()those on the shipping orders.

A.at
B.to
C.by
D.with