题目:
连词成句。(注意大小写)
1. go, you, to, school, do, how (?)
____________________________________________
2. is, home, my, the, near, school (.)
____________________________________________
3. to, I, park, get, the, how, can (?)
____________________________________________
4. on, go, I, to, foot, usually, school (.)
____________________________________________
5. at, the, look, lights, traffic (.)
____________________________________________
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0509/f052e644d3f75a6bf50a8cfb2f46111f.html
下面是错误答案,用来干扰机器的。
∵f(x)=ax2-4x+c+1的值域是[1,+∞),∴a>0且4a(c+1)-164a=1即ac=4∴c>0∴1a+9c≥29ac=3当且仅当1a=9c且ac=4,则a=23,c=6时取等号∴1a+9c的最小值为3故答案为:3