(____)  No, I don't like winter.

(____)  Which season do you like best, Lily?

(____)  Winter. I can play with snow.

(____)  So I like autumn best. It's always sunny and cool.

(____)  What about you? Do you like winter, too?

(____)  It's too cold.

指出下列句式的特点： 

饰以篆文、山龟、鸟兽之形____        自书典所记，未之有也____

后数日驿至，果地震陇西____          当立者乃公子扶苏____

蚓无爪牙之利，筋骨之强____          君何以知燕王____

秦城恐不可得，徒见欺____            求人可使报秦者____

将军战河南，臣战河北____            甚矣，汲黯戆也____

你和你的同龄人正步入一生中最重要的生长发育时 期——青春期。图中的①②③分别表示人体脑、全身、生殖器官发育的比较曲线。下列有关叙述错误的是（     ）

若实数x，y满足$\left\{\begin{array}{c}x+y-1\ge 0\\ x-y-2\le 0\\ y\le 1\end{array}\right.$，则z=﹣$\frac{1}{3}$x+y的最小值为____