题目内容

I developed very slowly and it took nearly two hundred years        I was built as an analytical machine by Charles Babbage.
A.beforeB.afterC.longD.short
A
考查连词before的用法。在这里意为“才”,句意:我发展的很慢花了将近两百年的时间我才被建成一台分析机。所以选A。
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