题目

The United States has about 475,000 school buses -- all painted yellow. Each day they carry more than 25,000,000 children, half of all schoolchildren in the country. But these buses, on average, use four liters of diesel (柴油) fuel to travel less than sixteen kilometers. When the school year began last fall, diesel averaged 55 cents a liter nationally. The price nearly doubled, to a dollar and 8 cents, by the end of school in June. Bob Riley speaks for the American School Bus Council. He says fuel prices for schools arc not much lower than others have to pay. As a result, schools are lookin下表是某同学的血液常规检验单，请根据表中的信息回答：（1）由该报告单可以判断该同学可能患有______；判断的依据是______．（2）若某人的血清与该同学的红细胞能发生凝集反应，则此人可能是______血型．