2019 2022英语周报初一下期第58期答案

书面表达One possible versionDear PeterI'm writing to invite you to see the Chinese Painting Exhibition to be held in our city.The exhibition will start at 8: 30 am on Saturday and last till 5: 00 pm on Sunday in the city museum It'ssaid that a large number of Chinese paintings, some of which are original works by famous painters like ZhangDaqian and Qi Baishi, will be on display. Besides, there will be various souvenirs to be sold. I know you re veryinterested in traditional Chinese culture, so I can t wait to tell you the news and hope we can go together.Looking forward to your reply.You

23.B【解析】由题目可知,棕眼对蓝眼为显性,右癖对左癖为显性,且两对性状独立遗传,根据亲代BbRrbRr,采用逐对分析法,Bb×b→1Bb、1b,即棕眼:蓝眼=1:1,Rr×Rr→+1RR、2Rr、1r,右癖左癖=3:1,可推出子代有BbR_棕眼右癖(1/2×3/4=3/8)、Bbrr棕眼左癖(1/2×1/4=1/8)、bbR蓝眼右癖(1/2×3/4=3/8)、bbrr蓝眼左癖(1/2×1/4=:1/8)。故选B。

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