题目

 设NA为阿伏加德罗常数的值。下列说法正确的是(    ) A.  1L 1mol·L-1的NaClO 溶液中含有ClO-的数目为NA     B．标准状况下，一定量的铜与硝酸反应后生成22．4 L NO、NO2、N2O4的混合气体，则被还原的硝酸的分子数大于NA     C．铁做电极电解食盐水，若阴极得到NA个电子，则阳极产生11.2L气体（标况下）     D．标准状况下，6.72L NO2与水充分反应转移的电子数目为0.1NA One of the main purposes of traveling is to relax and take a break from your normal daily life. Whatever the truth is, we’re not always free to do what we like when traveling to a foreign country, and a US tourist learned that the hard way.On Aug 12, the unnamed 4l-year-old man was beaten by a passer-by after he was seen giving Nazi salutes(纳粹礼) again and again on a street in Dresden, Germany.Ever since the end of World War II, Germany has had strict laws to forbid the Nazi salute, as well as other symbols of Nazism.In fact, most countries have their own taboos. If you plan to travel overseas, it's best to get familiar with these taboos before you start touring local sites. The following are some examples. SingaporeYou can get fined for a lot of things in Singapore, including feeding birds, spitting, urinating in public, smoking in public, not flushing a public toilet after you use it, and eating or drinking on buses or trains.JapanYou're not supposed to wear your shoes in someone’s house, but you're not supposed to take your shoes off outside the house either. Instead, there's a small area inside the door called a “genkan” which is where your shoes should go. If you're still not sure where that is, pay attention to what other people do and do the same.FranceFrench people don't like it when you talk about money. It's OK if you say that you want to quit a job because you are paid little money, but you should never say the exact amount. Money is a “dirty” topic in France.1.When traveling abroad, we can’t ________.A.relax and take a break from normal daily lifeB.follow what other people do and do the sameC.be always free to do whatever we likeD.tour the local sites and give salutes2.The underlined word “taboos” means something you must________doing.A.enjoy B.avoid C.finish D.keep3.________is considered to be proper.A.Eating or drinking on buses or trains in SingaporeB.Wearing your shoes in your Japanese friend’s houseC.Talking about how much money you can make in FranceD.Not smoking, spitting or feeding birds in public in Singapore4.You can read this passage in (a)n________.A.advertisement B.poster C.novel D.magazine