【題目】Experts strongly believe the virus comes from nature__________there exist groundless voices.

A.even ifB.now thatC.in caseD.as though

【答案】A

【解析】

考查連詞。句意：即使有很多毫無根據(jù)的推斷，專家依然堅(jiān)信病毒來源于大自然。A. even if 即使; B. now that 既然； C. in case 以防萬一； D. as though 好像。分析句子可知，空格前半部分的“專家依然堅(jiān)信病毒來源于大自然”和后半部分的“有很多毫無根據(jù)的推斷”是讓步關(guān)系，需使用even if表讓步。故選A。

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