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- 1如果一个数与厂2相乘的结果是有理数,则这个数的一般形式是什么(用代数式表示)
- 2that book is worth reading
- 3函数f(x)=log3|2x+a|的图象的对称轴方程为x=2,则常数a=_.
- 4What is everyone in the world doing at the same time?
- 5百米赛跑中小红开始30m做加速运动,后70m快慢不变,比赛成绩为16s,冲出跑道时速度为7m/s.
- 63We were about to climb up to the top of the mountain ________ it began to r
- 7一快车从甲地到乙地要4小时,一慢车从乙地到甲地要5小时,快车出发了3小时与慢车相遇,慢车比快晚几小时出发
- 8一个圆环,内圆半径是3分米,外圆直径是8分米,这个圆环的面积是?
- 9Must he finish his homework.(否定回答)No,he_____ _____ _____
- 10相同物质的量的SO2和SO3相比较,下列叙述正确的是A.分子数之比为1:1