题目

A young woman carrying a three-year-old child got on a bus. The conductor hurried to give her a warm welcome and then kindly asked the other passengers to make more room for the woman and her child. On seeing this, people began to talk. You know this conductor used to be very rude. Now suddenly he has changed his bad behavior , said a middle-aged man. Yes, he should be praised and we must write a letter to the company, said a second passenger. That's right, another lady said, I wish a newspaper reporter were here so that more people could learn from this conductor. Just then a gentlem一盒白粉笔是0.9元，一盒彩色粉笔是1.2元。  （1）一盒白粉笔比一盒彩色粉笔便宜（    ）元A.0.2B.0.3C.0.4D.0.5（2）两种粉笔各买一盒，需要付（   ）元A.2.0B.2.1C.2.2D.2.3