问题
填空题
已知不等式ax2+bx+2＞0的解是
，则a+b的值（）。
答案
参考答案：-14
解析：
ax2+bx+2＞0的解是
等价于ax2+bx+2=0的解是
，则有
解得
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已知不等式ax2+bx+2＞0的解是，则a+b的值（）。
参考答案：-14
解析：
ax2+bx+2＞0的解是等价于ax2+bx+2=0的解是，则有
解得
In front of my daughter Sindu was a bowl filled with cabbage. She hated cabbage. She only sat there in silence with tears in her 16 . “Sindu, darling, why don’t you 17 a little? Your Mom will shout at me.” Sindu wiped(擦) her 18 with the back of her hand. “OK, Dad. I’ll eat, just a little.” Then Sindu said, “Dad, if I eat it all, will you give me 19 I want?” “Yes, of course.” 20 she began to eat. It took her almost half an hour to finish the 21 . Then she came up to me and said, “Dad, I want to have my head shaved(刮、剃)! ” “Sindu, why don’t you 22 something else? If we see you with a clean-shaven head, we will be 23 , I said.” “But, Dad, you promised! Now, you are going back on your words.” I had to 24 my promise, Sindu had all her hair cut off. She looked beautiful. On Monday morning, I took her to school. Just when we 25 , a boy got out of a car, and shouted, “Sindu, please wait for me!” Guess what? The boy had 26 hair either. “Sir, your daughter is 27 !” a man got out of the car and said, “That boy is my son Harish. He has cancer(癌症). He lost his hair 28 he got ill. Sindu cut hers off so Harish felt less 29 . She is a special girl.” I stood for a while. “My little girl, you 30 me how selfless(无私的) real love is!
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