要三篇关於天气的英语小短文20词以下,两篇短文,一篇笑话(可短)

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• 某学习小组为探究空气中氧气的体积分数，他们想选用以下药品进行实验：

  1年前

• 某校的校车早上接学生上学沿途要经过6个站点。第一个站点上车的人数最多，以后每个站点上车的人数都是

  1年前

• f(x)的一个原函数为ln(x)/x,xf'(x)dx=?

  1年前

• 已知向量m=(2,-1),n=(sin二分之A,cos(B+c)),A,B,C为三角ABC的内角,其所对的边分别为a,b

  1年前

• 若AB=AC=AD,如果∠ADC是∠CAD的K 倍,求∠DBC是∠BDC的几倍

  1年前

精彩回答

• 细细咀嚼米饭一段时间后，我们会感觉到甜味，这是因为（　　）

  11个月前

• Is your brother at home？I want to________ him about our picnic.

  1年前

• 根据句意填空。 1. Whose is that book? It ___________ be Liu Mei's. 2. I don't like art at all. But my sister___________ art to music. 3. ___________ are from Italy. They like to eat pizza. 4. He can't walk and he sits in a ___________ . 5. It's easy to be a

  1年前

• Why are you late for school today? —I'm sorry. I didn't catch the early bus and I had to ________ the next one.

  1年前

• A lot of studends are having all kinds of spots on the spots field.

  1年前