2022英语周报七年级广州第29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

9.D函数f(x)=√3sin2x-2cos2x=√3sin2xcos2x-1=2sin(2x-x)-1,将函数y=f(x)的图象上的所有点的横坐标缩短到原来的。倍,得y=2sin(4x1的图象;再把所得图象向上平移1个单位,得函数y=g(x)=2sin(46)的图象,易知函数y=g(x)的最小正周期为;A项错误;当x=12时,4x-=,B选项说法错误;当x=x时,4x-=3=,函数y=8(x)=2,C选662项说法错误;若x∈x11,则4x-3∈6’246(2…数y一x(x)在区间答,递减D项说法正确;故选D2y+、3)

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