右边的漫画主要体现了
变废为宝
A.辩证否定的实质是既克服又保留
B.量变达到一定程度就会引起质变
C.矛盾主次方面在一定条件下相互转化
D.主次矛盾在一定条件下可以相互
答案:C
The old man didn’t know whether to sell the car or____ .
A.being kept for later use
B.kept for later use
C.to keep it for later use
D.to be kept it for later use
一张长方形纸的面积是63平方厘米,长9厘米,宽______厘米,如果用这张纸剪一个最大的正方形,这个正方形的面积是______.