問題詳情：
– MERS(中東呼吸綜合徵) is a terrible disease(疾病). What should we do?
– Don’t be nervous. Scientists are trying their best to _______ ways to treat it．
A. find out B. look forward to C. talk about D. set up
【回答】
A
知識點：動詞和動詞短語
題型：選擇題
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