江西省2023届九年级第二次阶段适应性评估 R-PGZX A JX化学答案

江西省2023届九年级第二次阶段适应性评估 R-PGZX A JX化学答案，目前全国100所名校答案网已经汇总了江西省2023届九年级第二次阶段适应性评估 R-PGZX A JX化学答案的各科答案和试卷，更多全国100所名校答案请关注本网站。

达 One possible versios Leaseing that you are recruiting volunteers for the 18th World Middle School Games in 200, I am wriing to apply Dear Sir Madlatp. y super fan of sports, I am eager to expose myself to various aports-telated actvities. Wodld Middle School for thys podtion Carnea in such a gokden opportunity to meet the outstanding teenagers waaldwide thatt I really don't want to miss it. In arldition, the voluntary service will offer me a precious chance to conirbute to our society. I believe I am a qunlified candidate. A good command of English ensuxes that I ean communicate with the foreign athleus elleetively. Moreover, with my love and knowledge for sports as Chinese history and culture. I can fulfill my role not only as a velunteer, but also 8. culfurul mssador to spread the splendid Chinese culture. I would be graleful if you could offer me the oppodiuniter Thank you for your consideration. Yours, Li Hud

x=2t26.解：(1)因为曲线C的参数方程为(t为参y=2t数)，即=之，代入可得y=2,即曲线C1的普通方程为y2=2x.因为曲线C2的极坐标方程为psin(0-T)=2,即p(sin0cos-coin子）=2反，即psin0-pcos0=4,即y一x=4,所以曲线C2的直角坐标方程为x一y十4=0.(5分)(2)设P(2t,2t),则P(22,2t)到直线x一y十4=0的距离d=12-2t+42(-)+引/12+(-1)3√27所以当1=号时，dm=-2华此时P(宁)即PQ的最小值为2此时P(分，1)(10分)