题目

Tokyo, March 11, 2011People left their houses near Sendai, northern Japan on March 11th. A man and child look out over destroyed homes after a tsunami(海啸) and earthquake.Nuclear crises(核危机) in Japan’s power plants(核电站).Could it have been worse?More than a minute before the earth under their feet began to shake, many millions of Japanese people got cell phone alerts; TV networks interrupted (打断,中断) their broadcasts and turned to the latest announcement of Japanese government; loud speakers started suddenly to warn people of the coming tsunami; bullet trains came to 一个两位数除以一位数，商（　　）A.一定是两位数 B.一定是一位数 C.两位数或一位数