Our new machines are much cheaper to run.A.effectiveB.efficientC.energetic
题型:不详难度:来源:
Our new machines are much cheaper to run.A.effective | B.efficient | C.energetic | D.enthusiastic |
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答案
B |
解析
试题分析:句意:我们高效率的新机器运行成本底多了。 四个选项的含义分别是:A. effective有效的,B. efficient生效的、效率高的;有能力的, C. energetic精力充沛的,D enthusiastic热情的,所以选B。 |
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