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單項選擇題

On a working copy of a weather map，a cold front is represented by what color line? （）

A.Red
B.Blue
C.Alternating red and blue
D.Purple

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單項選擇題

Navigational warnings and weather bulletins for shipping（）from Singapore Radio.

A.broadcast
B.broadcasted
C.are broadcast
D.are broadcasted

單項選擇題

NASHA VERELLA ST JACQUES ZENMU ANSHA REEF CLOUDY TO OVERCAST WITH SHOWERS WIND SW 17 TO 21 SEA MOD VIS GOOD TO MOD.The abovementioned forecast is probably from（）.

A.Radio Dalian
B.Radio Guangzhou
C.Radio Singapore
D.Radio Bangkok

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