问题
选择题
设一元二次方程(x－1)(x－2)＝0的两根分别为α、β，且a<β，则a，β分别是 （ ）
A．α=1，β=2
B．α=2，β=1
C．α=﹣1，β=﹣2
D．α=﹣2，β=﹣1
答案
答案：A
解：
，
，
，
，
，
故选A.
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设一元二次方程(x－1)(x－2)＝0的两根分别为α、β，且a<β，则a，β分别是 （ ）
A．α=1，β=2
B．α=2，β=1
C．α=﹣1，β=﹣2
D．α=﹣2，β=﹣1
答案：A
解：，
，
，
，
，
故选A.
I am a mother of three and have recently completed my college degree. The last class I had to take was Sociology. The teacher was really inspiring. The class was asked to go out and smile at three people. I am a very 1 person and thought this would be a piece of cake. Soon after, my husband, youngest son, and I went out to McDonald’s. We were standing in line, waiting to be 2 , when all of a sudden everyone around us began to 3 away, and then even my husband did. As I turned around I 4 a terrible “dirty body” smell, and there standing behind me were two poor 5 men. As I looked down at the short gentleman, he was “ 6 ”. His beautiful sky blue eyes were full of God’s Light as he searched for 7 . He said, “Good day” as he counted the few coins he had been 8 . The young lady at the counter asked him what they wanted. He said, “Coffee is all Miss” because that was all they could 9 . He just wanted to be warm. Then I really 10 it—the compulsion（冲动）was so great that I almost reached out and hugged the little man with the blue eyes. That is when I noticed all eyes in the restaurant were set on me, judging(判断) my every action. I smiled and asked the young lady behind the counter to give me two more breakfast meals on a 11 tray（托盘）. I then walked around the corner to the 12 that the men had chosen as a resting spot. I put the tray on the table and laid my hand on the blue-eyed gentleman’s 13 hand. He looked up at me, with 14 in his eyes, and said, “Thank you.” I 15 with one of the biggest lessons I would ever learn: acceptance without condition.
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