Bats are surprisingly long-lived creatures, some ____________ a life span of around 20 years.
A．havingB．hadC．haveD．to have
A
    
試題分析:考查獨(dú)立主格。逗號(hào)前后主語(yǔ)不同，而句中又沒(méi)有連詞，所以判斷是獨(dú)立主格結(jié)構(gòu)，即：邏輯主語(yǔ)+現(xiàn)在分詞/ 過(guò)去分詞/ 不定式，故排除C選項(xiàng)；其中some和have是主動(dòng)關(guān)系，應(yīng)該用現(xiàn)在分詞，所以A選項(xiàng)正確。句意：蝙蝠是一種長(zhǎng)壽得令人吃驚的動(dòng)物，其中一些的壽命是200年左右。
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