可锻铸铁是由白口铸铁在固态下经长时间石墨化退火而得的具有（）石墨的一种铸铁。
A.团絮状
B.球状
C.片状
D.块状
参考答案：A
与25×36的积相等的是[ ]
A.26×35
B.50×18
C.23×56
The prisoner of war wished to be ______. Ten years later, he ______ free and regained his ______.
A. free ; was set ; freeB. freely ; was set ; freedomC. free ; set ; freedomD. free ; was set ; freedom
