2022英语周报14期七年级答案

书面表达One posssible versionDear Mr. Smith,I'm Li Hua, a senior 3 student. Learning that your City Culture department is looking for an English editorthis summer, I'm eager to apply for the position.As far as I'm concerned, city culture refers to a citys history, geography, customs, future, and so on. Asa native, I am quite familiar with our citys traditional culture. Besides, I have a good command of ErI' m especially good at English writing. Additionally, Im cooperative and creative, which will give me anadvantage for the position.I'll be greatly honored if I' m chosen for the job. If I'm admitted, please email me at lihua @16com.Yours sincerely,Li Hu

5D【解析】要发生相对滑动,传送带的加速度需大于煤块的加速度即aa>kg,则有<“,A错误;当煤块的速度达到v时,经历的时间t=—,经过的位移x:=,B、C错误;煤块从开始运动到相对于传送带静止传送带的位移x=2a+(_、_v_va82an,则黑色痕迹的长度L=x2-x1=p2a正确故选D。

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