No agreement was reached in the discussion between the two parties,（）either side refused to soften their position.<br>Awhen<br>Bwhile<br>Cunless<br>Deven though

题目内容（湖北师范大学大学英语）

No agreement was reached in the discussion between the two parties,（）either side refused to soften their position.
Awhen
Bwhile
Cunless
Deven though

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