填空题
Only 10% of your investment is needed to get 90% of your increase in efficiency.
【参考答案】
Y
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假如你是王玲,请你就社区附近建筑工地的污染问题给市长写一封信,内容应涉及污染情况、给居民带来的不便以及你的建议。
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单项选择题
A.expositionB.comparisonC.contrastD.interaction
A.exposition
B.comparison
C.contrast
D.interaction
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