2022英语周报高二课标OT答案

18.(1)设“可判断两个选项是错误的”两道题之一选对的为事件A,“有一道题可判断一个选项是错误”选对的为事件B,有一道题不理解题意”选对的为事件C,,P(A)=,P(B)=3P(C=,得40分的概率为P=×××+一(4分)(2)得25分或30分的可能性最大得20分的概率为:F××x=;得25分的概率为P×××3×+×+÷得30分的概率为:Px×3×是+××号xx是+x×3×2+1××3×-据得35分的概率为:P×××号×+号××号×+7×3×4=48(8分)(3)E()=20×6+(25+30)×+35×方+40×=57548-12≈27.92.(12分)

第二节One possible versIon:So we all sat down at the table and began to tell stories. At one point Frank looked at me with tears in hiseyes. He told me that I might never know something about those Christmas letters. He said,"Remember.when you were a kid and you used to put your letters to Santa in those green and red boxes on Main Street? Itwas your dad who answered all those letters every year.I just sat there with tears in my eyes. It wasn t hard for me to imagine Dad sitting at the old oak table in ourbasement reading those letters and answering each one. I have since spoken with several of the people who re-ceived Christmas letters during their childhood, and they told me how amazed they were that Santa had knownso much about their homes and families. For me, just knowing that story about my father was the gift of alifetime

以上就是2022英语周报高二课标OT答案，更多英语周报答案请关注本网站。