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填空题
Because light travels (fast) ____ than sound, lightning is seen before thunder(雷) is heard.
参考答案
参考解析
解析：
本题考查副词的比较级。句意：由于光传播的速度比声音快，所以我们先看到闪电后听到雷声。than提示此处应为比较，因此要用fast的比较级faster。
本题考查副词的比较级。句意：由于光传播的速度比声音快，所以我们先看到闪电后听到雷声。than提示此处应为比较，因此要用fast的比较级faster。
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共用题干
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共用题干
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共用题干
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共用题干
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d-a-c-b-eB
d-a-c-e-bC
a-d-c-b-eD
a-d-c-e-b
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填空题Because light travels (fast) ____ than sound, lightning is seen before thunder(雷) is heard.
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as fast, if not faster than, anyone elseB
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They cannot pronounce/n/B
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单选题A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and （）.A
one sidelight and the masthead light are visibleB
the vessels will pass closer than half a mileC
both vessels sound one prolonged blastD
both sidelights and masthead light(s) are visible
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