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1,。语法The period when the great painted caves at L and A were occupied by U P peoples (has been established by carbon dating ,but what is much more difficult to determine are )the use to which primitive peoples put the caves, the reason for their derection,and the meaning of magnificiently depicted animals. 括号处即划线部分,求教划线最后为什么不是 are(正确答案是is),理由:后面列了the use ,the reason ,the meaning 2,is xy>0? 1 x-y>-2 2 x-2y < -6 答案C 3.一堆卡片中,每张上面有一个正整数,在乘法游戏中,一个小孩抽了一张卡片,然后将上面的integer和next larger integer 相乘,若每一个乘机在15到200间,那么卡片上最小和最大的这个数是 正解 4 and13 .............lz 表示不理解 4.一道和本月JJ类似的配orange juice的题,1 can concentration 和3 can 水配,问多少罐12ounce的concentration 能配出2006 ounce serves orange juice |
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