关于世界气温分布规律的叙述，正确的是（   ）

下列哪种反射不是人生来就有的是 （     ）

用所给词的适当形式填空
（1）I’d like to visit Beijing because the people there are very ____  (friend).
（2）The oranges come from ____ (south) China.
（3）What other____  (language) do you like? 
（4）There ____  (be) lots of meat in the ice box.
（5）How many ____  (box) of apples would you like? 

圆锥的底面积一定，高和体积成正比例。