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英语翻译In contrast,the United Nations Division for Public Econo
有理数a,b,c在数轴上的位置如图所示,试化简下式:|a-c|-|a-b|+|2a|.
This is not only a fun way to learn but it is also very effe
一个棱锥的三视图如图(单位:cm) 则该棱锥的体积为
质量分别为m1和m2的两个物体...
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China is trying her best to develop its agriculture and _______ (工业).
自非亭午夜分,__________。(郦道元《三峡》)
在估算3592÷61时,想出3592≈______,61≈______,______÷60=______,所以商大约是______.
We need to buy a new car. This old car won't _____ for very long. [ ]
When you discuss about eating out with your friend, first of all, you must make it clear who will pay for the meal.