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    精英家教网 > 高中英语 > 题目详情
    I wasn’t aware of this before, but recent research _____ that eating too much fat can contribute to heart disease.
    A．has shown　B．will showC．was showingD．showed
    A
    本题考查时态。根据句意：我以前没有意识到这一点，但最近的研究已经表明：吃太多的脂肪可能导致心脏病。recent research故用现在完成时态。
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