新东方赵丽词汇课堂 Lesson 81
2012-04-17来源:和谐英语
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21. There are few areas of our lives in which tools don't play an ______ part.
A. indispensable B. independent C. indistinguishable D. indiscriminate
<indispensable>
indispensable 不可或缺的,必要的,必不可少的
expense 花费,费用
expenditure 花费
expensive 花费的
</indispensable>
<independent>
independent 不可依靠的,独立自主的
</independent>
<indistinguishable>
indistinguishable 不能区分的,不可辨别的,无法辨认的
</indistinguishable>
<indiscriminate>
indiscriminate 不辨善恶的,不辨美丑的
</indiscriminate>