He tried to cope with the ever-increasing burden of his work, but finally he _____ and had to take a plete rest．A.broke inB.broke downC.broke outD.broke up
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B解析词组辨析题。A．broke in 闯入B．broke down 垮掉 C．broke out 爆发D．broke up 解体句意：他试图处理日益增长的工作压力结果他的身体垮掉了不得不彻底休息。 根据语境选B