Recent research has______the causes of the mysterious disease that has claimed thousands of lives.

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问题 Recent research has______the causes of the mysterious disease that has claimed thousands of lives.

选项 A、laid stress on
B、caught hold of
C、made sense of
D、cast light on

答案D

解析 本题考查短语辨析。lay stress on“强调”,catch hold of“抓住”,make sense of“理解,弄懂(不易理解的事物)”,cast light on“使(问题等)较容易理解,阐明,查明”。句意为“最近的研究阐明了导致成千上万人死亡的神秘疾病的发病原因”。故本题选D。
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