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討論串[計量] 請教一題計量
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題目在這裡，圖表題. 第20題. http://dl.dropbox.com/u/62576003/IMG-20120721-WA0000.jpg. 他說W的總數是Z的兩倍，然後Occupancy rate上來看，W是1.2，Z大概是1.5，題目又說. W這1.2的實際數量是30,000，問Z的實際
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不是喔,這樣會在解題上有錯. 最後一題的句子是. what fraction of those (who do not have brown hair) have red hair?. 主詞 對主詞的形容詞 動詞. 也就是說,要問的是那群"不是灰髮者"裡"有紅髮"的比例. 題目說有55%灰髮,80%
(還有198個字)
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原題照抄：. If 55 percent of a group of people have brown. hair and 80 percent of the same group do not. have red hair, what fraction of those who do. not
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for a light that has an intensity of 60 candles at its source, the intensityin candles, S, of the light at a point d feet from the source is given by
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