1.Why are young men unwilling to date the daughter of the Fortunes?

Answer:__________________________________________________

2. An old woman has lived in one-story house before. Her body is very short. Afterwards,

she moves into a big building and lives in the ninth story. However, when she comes back

home each time, she always takes an elevator to the sixth story and gets off, then she walks

to the ninth story. Why?

Answer:

_______________________________________________________________

在图案填充时，“添加：拾取点”方式是创造边界灵活方便的方法，关于该说法错误的是（）。

A.该方式自动搜索绕给定点最小的封闭边界，该边界必须封闭

B.该方式自动搜索绕给定点最小的封闭边界，可以设定该边界允许有一定的间隙

C.该方式创建的边界中不能存在孤岛

D.该方式可以直接选择对象作为边界