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Thisrobotissupposedtosavealotoflabor,butitremainsaprobl...
問題詳情:Thisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.A.isB.savesC.doesD.has【回答】C【解析】do(es)是代動詞,用來代替上文savealotoflabor。知識點:動詞時態題型:選擇題...
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