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    What we really concern is _____ those orphans can recover from the earthquake psychologically.

    A．that B．if C．why D．whether

    D

    解析试题分析：句意：我们真正关心的是那些孤儿能否在心理上从地震（的伤害）中恢复过来。表语从句中表示是否，用whether不用if. 只用whether不用if的情况：1.主语从句放在句首 2. 引导表语从句 3.介词后，不定式前   4. 与or或or not连用。5. discuss后。故D正确。
    考点：考查whether和if的区别。

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