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They were locked in mortal combat.
A: deadly
B: open
C: actual
D: active
B: open
C: actual
D: active
参考答案
参考解析
解析：句意：他们被困于一场致命的争斗中。画线单词mortal意为“致命的”。A项deadly 意为“非常的，致命的”，与画线单词意义相近;B项open意为“开着的”;C项actual意为 “实际上的”;D项active意为“活跃的”。
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