—Which team is           to win the game?

—I don't know, but l've found         that ours will  win.     [ ]

A. probable;  it unlikely        

B. likely; it possible

C. possible;   it possible        

D. likely; it possibly

计算题：经检测退火态的亚共析碳素钢基体组织中，珠光体和铁素体的质量分数各占一半，求该钢的牌号。