单选题
The Panama Canal was constructed in 1915 ______ three hundred fifty million dollars.
A、
at half cost to
B、
at a cost of
C、
at any cost
D、
at all costs
【正确答案】
B
【答案解析】
[分析] at a cost of“耗资”,“以……的代价”;at half cost to“以半价”;at any cost和at all costs同义,意为“不惜任何代价”,“无论如何”。根据题意和事实,B是正确答案。
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