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單項選擇題

The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.

A.Amphibious training areas
B.Grounds for dredge spoil
C.Fish trap areas
D.Gunnery exercise areas

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單項選擇題

The arrangement of charts in the catalogue is（）.

A.on a regional basis
B.on a national basis
C.shown orderly
D.appeared from A to W

單項選擇題

That the scale of any part of a chart to be larger than the scale of the survey is（）.

A.very rare
B.common
C.often
D.reasonable