题目

A. take place B. first C. last D. ancient E. Local F. Then G. HoweverThe Olympic Winter Games Beijing 2022 will ______ in February 2022, together with the Chinese New Year (Spring Festival), the most important holiday in China. ______ people are looking forward to welcoming sportsmen from around the world to enjoy the Chinese New Year festivals, the ______ buildings and the rich cultures of Beijing.This is the ______ time for China to hold the Winter Olympics, and the third time to host an Olympics following the Beijing 2008 Olympics and the Nanjing 2014 Youth Olympics. The 24th Winter Games w8.某次探究凸透镜成像规律的实验如右图,光屏上出现了清晰的像,下列说法正确的有①若将蜡烛向右移动,若想让光屏上仍得到清晰的像,可在凸透镜钱再放置一个恰当的凹透镜.②此透镜的焦距可能是10cm③此时成像的原理与照相机相同④若不动蜡烛和光屏,仅移动透镜,光屏上可以出现缩小的像.A.①③B.①④C.①②④D.②④
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