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化简:
2
+
1
2
-
1
=____ .
上一题 下一题 0.0难度 选择题 更新时间:2019-04-17 11:41:06

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3+22

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如图为细胞与相关蛋白质局部结构模式图,请据图回答下列问题:

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Too high house prices can be brought under control,     ___the authorities introduce a series
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列举战国七雄。

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   The clock struck(敲) eleven at night. The whole house was quiet. Everyone was in bed except me. Under the strong light, I looked sadly at a huge pile(堆) of those trouble things —books.
   I was going to have my exam the next day. “When can I go to bed?” I asked myself. I didn't answer. And I could not. The clock struck twelve. “Oh, dear! Ten more books to read before I go to bed!” We students are the most wretched ones in the world. Dad does not agree with me on this. He did not have to work so hard when he was a boy.
   The clock struck one. I was quite hopeless now. I forgot all I did learn. I was too tired to go on. I did the only thing I could. I prayed(祈祷), “My god, please let me pass the exam tomorrow. I will work hard next time, Amen.” My eyes were so heavy that I could hardly open them. A few minutes later, with my head on the books, I fell asleep.

同类题5

已知函数f(x)= {2x−1,x≥2−x3+3x,x<2 ,若函数y=f(x)﹣m有2个零点,则实数m的取值范围是____.
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