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單項(xiàng)選擇題

If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left,you would().

A.fire a green star to the left
B.send the letter K by light and point to the left
C.place an orange signal to your left as you signal with a white light
D.send the code signal S followed by L

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