题目

Today I'll be talking about the invention of the camera and photography.The camera is often thought to be a modern invention，but as early as 1727，a German physicist discovered that light darkens silver salt.Used as a camera，a big box was set up，and a small hole was cut in one side to let the light in；he made temporary pictures on the salt.Silver salt is still the base of the photographic film today.Then a French scientist made the first permanent picture by using a special piece of metal which was covered with silver salt.A photograph he made in 1862 still exists. The painte关于欧洲西部旅游景点的说法，正确的是（　　）A．英国的峡湾风光引人入胜B．伦敦的艾菲尔铁塔令人景仰C．南部地中海沿岸国家的海滨沙滩优美宜人D．芬兰的花卉尤其是郁金香闻名世界