【简答题】【消耗次数：1】
说明曲面的主曲率与法曲率的关系.
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compressed
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a few
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few
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How old are you?
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Where are you from?
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May I have your name?
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critical
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aware
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visual
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The boy is not happy at the new school. He has _________ friends there.
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few
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a few
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little
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The hospital bed is no longer ______ by his wife because she is fine now.
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overlooked
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occupied
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opened
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The car ran over the child, but by a _____ he was unhurt.
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wonder
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marvel
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miracle
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surprise
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affect; influence
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effect; influence
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affect; effect on
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