Air is to us _____ water is to fish.

A．whatB．thatC．whichD．is that

A

解析試題分析：考查從句，固定句型Air is to us what water is to fish.句子意思“空氣對(duì)于我們就像水對(duì)于魚一樣”
考點(diǎn)：考查從句
點(diǎn)評(píng)：做從句題時(shí)，首先看從句是否缺少成份，如果缺少就在關(guān)系代詞里找引導(dǎo)詞；如果不缺少成份，就在關(guān)系副詞里選擇引導(dǎo)詞

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