奧數(shù)應(yīng)用題專題階梯練習(xí)題及答案——競(jìng)賽篇
競(jìng)賽篇答案： 81．150 82. 20：39 83. 57 84. 7 85. 7 86. 3 ，15 87. 80.2 兆 88. 50% 89. 6 90. 2 ...
昂立版：08春季中口聽譯原文及答案
'Passage translation1.Water is great medicine needed to maintain a healthy body and a clear mind. About 60%of your body is water and you must constantly resupply it. The standard recommendation is to...'
