2022英语周报GQY答案

书面表达One possible versionI求Dear PeterI heve good news for you Our school Food Club will hold a dumpling- making activity. As you're interestedin Chinese food, I'm writing to invite you to join in the activity with me.As a kind of traditional Chinese food, dumplings are very popular during festivals, especially in the SpringFestival, when people will get together to make dumplings. The activity will begin at g am next Saturday in theschool canteen. First, (chefs) will teach us how to make dumplings step by step. Then, there will be a dumplingmaking competition in groups. Finally comes the most exciting part--enyoying our dumplings.Looking forward to your coming.Your

16.。【解析】设线段PA,PB的长分别为m,n,双曲线的渐近线方程为y=±2x,即x±3y=0,所以∠AOB=2n3∠APB3设P(x0,y),则3b=1,即x3-3y=3x。-√3y。2x+、3y所以mnx3-3y34所以AB|2=m2+n2-2mncos =m2+n'tmn3mn=49当且仅当m=n时等号成立,所以AB|≥2

以上就是2022英语周报GQY答案，更多英语周报答案请关注本网站。