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    精英家教网 > 高中英语 > 题目详情
    Some people are worrying about the possibility ________ mobile phones could be responsible for a range of illnesses, from rashes(皮疹) to brain tumors．
    A．thatB．whyC．howD．whether
    A

    这题考查that引导同位语从句，修饰possibility，句意是：一些人担心手机有可能会导致一系列疾病，皮疹和脑肿瘤。选A。
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