题目

薄荷醇(化学式为C10H20O)可用于糖果、饮料的加香。下列有关薄荷醇的说法正确的是 A．薄荷醇属于有机高分子化合物 B．薄荷醇由10个碳原子、20个氢原子和1个氧原子构成 C．薄荷醇中碳元素、氢元素和氧元素的质量比为10：20：1 D．薄荷醇中碳元素的质量分数约为76．9％ 答案：DSigns in Chinese will be set up in public areas such as airports, to benefit Chinese travelers, the Italian Government announced in late February. Now many European countries are expected to follow this example.Despite the different languages, travel across Europe has never been so simple. Just five years ago, if you wanted to visit Germany in the north and Spain in the south in one trip, you had to wait for weeks to apply for different visas from the two countries. You also needed a calculator because both countries had different money.Today, with a Schengen Visa issued by any member country, you can travel across 15 European countries without stopping. Since 2002, within most of the EU, there is now just one type of money called the Euro. The Euro was designed to be the only money in the EU, and already makes it easier to shop around. If you drive, your driving license and car insurance policy are valid（有效的）in the other European countries. And you can use your mobile phone everywhere. All the countries in the continent are melting into a united Europe under the EU. For Europeans and visitors, the result is that it is more convenient to travel back and forth between the different countries1.By saying the underlined sentence “Now many European countries are expected to follow this example”, the writer means that ____A.more signs will be set up in Chinese in European countriesB.more and more Europeans have a desire to know more about ChinaC.more and more Chinese people will go to travel across EuropeD.Chinese is now an important language in Europe2.Compared to five years ago, traveling in Europe has become easier because ___A.you needn’t drive a carB.you can use a calculator to exchange moneyC.applying for different visas is much simplerD.one visa is good enough for traveling in a number of countries3.It can be inferred from the passage that _____A.an increasing number of Chinese tend to travel to EuropeB.Chinese has become an important language in EuropeC.the Euro is the only money used in the EU nowD.it is always necessary to unite many countries into one