破阵子·为陈同甫赋壮词以寄之

醉里挑灯看剑，梦回吹角连营。八百里分麾下炙，五十弦翻塞外声，沙场秋点兵。

马作的卢飞快，弓如霹雳弦惊。了却君王天下事，赢得生前身后名。可怜白发生！

①是我国建设完善市场体系的战略构想

②表明我国扩大开放，加快“走出去”步伐

③有助于推动我国城乡一体化发展进程

④能够为我国发展创造广阔的市场空间

已知0＜α＜β＜$\frac{\mathrm{\pi }}{2}$，且cosαcosβ+sinαsinβ=$\frac{4}{5}$，tanβ=$\frac{4}{3}$，则tanα=____ 

    My uncle is a farmer. He has ninety 1trees on his farm. My uncle and my2can't pick(采摘) all the apples in fall(秋天).3 they ask my parents and me to 4 them every year. It's Sunday. My parents don't go to5and I don't go to school. So we'll go to the6. We get up early(早) in the 7 My mother is in 8 old clothes. My father buys many kinds of food for my uncle's 9in a shop. She likes them very much. My uncle and aunt 10 us many apples, too. I like to work on the farm.