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單項(xiàng)選擇題

There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.

A.shown
B.expressed
C.appeared
D.displayed

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單項(xiàng)選擇題

There is plenty of（）at this area.

A.a room
B.room
C.rooms
D.the room

單項(xiàng)選擇題

There is not（）depth of water around the area centered at the lighthouse.

A.ample
B.sufficient
C.enormous
D.incredible