小明已参加了20场棋赛,其中赢的场数占95%,若以后小明比赛全胜,则赢的场数恰好占96%,小明还需要进行( )场比赛。[ ]
A.2
B.3
C.4
D.5
答案:D
Tom's father _______ a second-hand car. [ ]
A. need to buy
B. needs buy
C. need buy
D. needs to buy
分析碳洗塔出口带水原因?