题干

下面是生活中常见的物质,其中属于纯净物的是(   )

A:食盐水

B:蒸馏水

C:自来水

D:肥皂水

上一题 下一题 0.0难度 选择题 更新时间:2019-09-12 09:15:29

答案(点此获取答案解析)

B

同类题1

阅读理解

    The right name is important in the business world. All you have to do is to think of the names for some of the products you buy every day and you'll agree that the name and the product are connected in everyone's mind.

    In many countries, successful trade or brand(商标)names are protected by law so that other companies cannot make the same product by copying. Businesses register(注册)a company or a product name with the government. In fact, more than 1,000 product and company names are registered every hour. Many companies spend a lot of money to find the right name for their products. A good example of this is in the car industry. Some successful names for cars have powerful associations(联系).The Ford Mustang and the Jaguar are only two examples of choosing the names of animals that are fast and strong.

    When a U.S. company decides to sell its product in another country, it has to make sure that the product name translates properly. When Coca-Cola introduced its soft drink to China it looked for the right name. It wanted a name that would do two things. One was to present its image in Chinese and the second was to be close to its first brand name-Coke. It took some efforts before finding the right word-which sounds similar and translates as "happiness in the mouth".  Asian company names are not new to the United States. The brand names of Samsung and Sony have been successful. Finding the right brand name is a big business. Asian companies that sell to foreign markets pay to find a name that will connect with its customers. There are even naming companies that offer help in inventing product names. These companies can charge(要价)up to $ 100,000 a word for their good names. But it's worth it. Successful companies know how important the right brand names are for their development.

同类题5

阅读【甲】【乙】两段选文,完成文后题目。
                                                                                                          【甲】晏子使楚
        晏子将使楚。楚王闻之,谓左右曰:“齐之习辞者也,今方来,吾欲辱之,何以也?”左右对曰:“为其来也,臣请缚一人,过王而行。王曰,何为者也?对曰,齐人也。王曰,何坐?曰,坐盗。”
       晏子至,楚王赐晏子酒,酒酣,吏二缚一人诣王。王曰:“缚者曷为者也?”对曰:“齐人也,坐盗。”王视晏子曰:“齐人固善盗乎?”晏子避席对曰:“婴闻之,橘生淮南则为橘,生于淮北则为枳,叶徒相似,其实味不同。所以然者何?水土异也。今民生长于齐不盗,入楚则盗,得无楚之水土使民善盗耶?”王笑曰:“圣人非所与熙也,寡人反取病焉。”
                                                                                                                                                                                  (选自《晏子春秋》)
                                                                                                                 【乙】师旷①撞晋平公
       晋平公与群臣饮,饮酣,乃喟然叹曰:“莫乐为人君!惟其言而莫之违。”师旷侍坐于前,援②琴撞之。公披衽③而避,琴坏于壁。公曰:“太师谁撞?”师旷曰:“今者有小人言侧者,故撞之。”公曰:“寡人也。”师旷曰:“哑④!是非君人者之言也。”左右请除⑤之。公曰:“释之,以为寡人戒。”
                                                                                                                                                                                            (选自《韩非子》)
【注释】①师旷:名旷,字子野,是春秋后期晋国宫廷中的盲乐师。②援:执持,拿。③衽:衣襟。④哑:表示不以为然的惊叹声。⑤除——除去。