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【简答题】
一艘轮船以15海里/时的速度由北航行，如图，在A处望小岛P，测得∠PAN=15°，两小时后，轮船到达B处，测得∠PBN=30°，在小岛P周围18海里的范围内有暗礁，若轮船继续向北航行，有无触礁危险？
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【单选题】A sixty-four-year old man was diagnosed with an acoustic neuroma (tumor of the VIII cranial nerve. where it entered the temporal bone. What other cranial nerve -might also be affected since thi...
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B.
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【单选题】The old man entered the room with a dog _________behind him.
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D.
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