They are bending with great （）over the computer.
They are bending with great （）over the computer.
A、attempt
B、concentration
C、tolerance
D、devotion
【正确答案】：B
【题目解析】：attempt企图或努力；concentration专心；tolerance宽容，忍耐力；devotion热爱。根据句意：他们正集中精力埋头在电脑上苦干。可知，应选B
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