2. 外语
  3. The discussion was so prolonged and exhausting that_______the speakers stopped for refreshments.

The discussion was so prolonged and exhausting that_______the speakers stopped for refreshments.

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问题 The discussion was so prolonged and exhausting that_______the speakers stopped for refreshments.
选项 A、at large
B、at intervals
C、at ease
D、at random
答案B
解析 短语辨析。at intervals意为“不时，时时”，如：It snowed at intervals this week．(这星期不时下雪。)at large意为“不受控制的；逍遥法外的；整个的，全部的”，如：the country at large(整个国家)；at ease意为“安逸，自由自在”．如：Her mind was at ease knowing that the children were safe．(知道孩子们很安全，她放心了。)at random意为“随意地，任意地”，如：They walked along the street at random．(他们随意地在街上逛。)根据题意，应选B)。
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大学英语六级

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