⑴将杠杆的中点置于支架上，当杠杆静止时，发现杠杆左端下沉，如图甲所示，这时应将左端的平衡螺母向____（填“左”或“右”）端调节，直到杠杆在水平位置平衡，目的是____.

⑵如表丙所示，是“研究杠杆平衡条件”实验记录结果.

⑶小辉分析数据得出的杠杆平衡的条件是：“动力×动力作用点到支点的距离＝阻力×阻力作用点到支点的距离”.

小石分析数据得出的杠杆平衡的条件是：“动力×动力臂＝阻力×阻力臂”.

你认为____的结论正确.为了帮助验证正确的结论，可以将图中的F₁改用弹簧测力计来拉，在实验中不改变拉力的____，而改变拉力的____（此2空选填“作用点”、“大小”或“方向”），仍使杠杆在水平位置平衡时，将发现F₁·OA____F₂·OB（选填“＝”或“≠”），即可证明正确的结论.

      Do you like eating chocolate? Companies spend millions of dollars on tools and machines to make chocolate. With a little ingredients, however, you can turn your kitchen into a chocolate factory. Today we will teach the Cocoa Powder （可可粉）Method（方法）, it is easier for beginners. Try it and make your own homemade chocolate.
Here are the ingredients (原料) you need:
cocoa powder — 2 cups (220g) ; butter — 3/4 cup (170g); sugar — 3/4 cup (100g); milk — 2/3 cup (150ml); salt — a little bit ; water — 1 cup (235ml).
      Now, please follow these steps. First, mix the cocoa powder and butter in a bowl until you have a smooth paste (酱). Then , add the cocoa powder mixture (混合物)  to the hot water and stir（搅拌）. Allow the temperature to rise back up. Put the hot mixture into a bowl,  stir the sugar mixture into the hot cocoa mix. Add milk, stir until smooth. At last, put the mixture into different containers（容器）. The chocolate will take the shape of the container. You can put it in the fridge to harden（使变硬）it.
We hope you can enjoy your homemade chocolate.

若双曲线$\frac{x^2}{3}-\frac{16y^2}{p^2}=1$的左焦点在抛物线y²=2px的准线上，则p的值为（     ）