问题
填空题
在括号内填写适当的项：（ ）﹣（x2+1）=x﹣1．
答案
x2+x
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在括号内填写适当的项：（ ）﹣（x2+1）=x﹣1．
x2+x
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| Mr Smith goes to work early every day. He 1 the bus at 7. On the bus a woman and her little boy 2 beside him. Suddenly the boy begins to cry (哭). 3 mother does her best to make him 4 crying. But 5 wouldn't stop crying. At last Mr Smith 6 to them and says, "Oh, how hard that boy 7 crying! Why not 8 him what he is asking for?" "I would if I could." answers the mother quietly. "He 9 your hat." | ||||
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