生生不息
视死如归
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- 1this a teacher,s deacher desk?
- 2母线长为1的圆锥的体积最大时,其侧面展开图的圆心角怎么算
- 3三角形ABC是直角三角形,CDEF是正方形,若AC=6厘米,BC=8厘米,求正方形CDEF的面积.
- 4样本数据3、6、a、4、2的平均数是5,则这个样本的方差是( ) A.8 B.5 C.22 D.3
- 5Max has a good sense of humour 对画线部分提问( a good sense of humour)
- 610分之51的3倍减去2分之5的倒数,差是多少?
- 7一道英语选择题:While _ the hill ,the little girl was too tired _ walk on.
- 810个比较少见的成语,再从这10个成语中选出两个成语进行具体造句
- 9英语翻译
- 10Did she do her homework last night?(用at seven o'clock last night代替last night)