2021-2022 英语周报 七年级 新目标 专项复习答案

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

17.(1)mgl(2)/3L(3)8【解析】(1)A在B上滑行时,其受力如图甲所示m迟g由牛顿第二定律有mAgin 8-/3 cos O=mAa.A(2分)对B受力分析如图乙所示由牛顿第二定律有mmBgsin 0+ mArcos 0-42(mA+mBgcos 0=mBaB(2分)由运动学规律有2L=-aAt(1分)(1分)

以上就是2021-2022 英语周报 七年级 新目标 专项复习答案，更多英语周报答案请关注本网站。