组卷网 > 高中英语综合库 > 单词辨析 > D > danger
题型:单项选择 难度:0.65 引用次数:77 题号:13348836
He rescued a child at the ________ of his own life and then left without being noticed.
A.dangerB.riskC.costD.expense
【知识点】 danger expense risk at the cost of

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