问题 选择题

下列说法正确的是

A.棉花 、蚕丝都含有纤维素

B.蔗糖可以水解生成葡萄糖和果糖

C.Na+的焰色反应呈黄色,属于化学变化

D.用加热蒸干AlCl3溶液的方法能制得无水AlCl3

答案

答案:B

题目分析:A.棉花的成分是纤维素,蚕丝的成分是蛋白质,错误;B.蔗糖水解后可得葡萄和果糖,正确;C.焰色反应是物理变化,错误;D.由于加热件下使平衡

AlCl3 +3 H2O Al(OH)3 + 3HCl 向右进行,生成的HCl的挥发,又促进了水解,蒸干时2Al(OH)3Al2O3 + 3H2O,最终得到的产品是含有杂质,错误。

单项选择题
填空题


What are the challenges facing multinationals that want to build their brands in China —I think the first thing is ignorance. There’s a huge (1) of the complexity in China, which is more complex than Europe. There are different rules of law, which (2) a significant factor. There are different (3) , Cantonese and Mandarin and lots of others in (4) , and dialects like Sichuan versions. You have problems of distribution. (5) Chinese brands have been (6) local because of the size of the market and the transportation system, What’s (7) built up there is a sort of a pride in localness.
How can companies build their brands in China —China is a place where (8) have to be very patient and you’ve got to build (9) time. You can’t go in (10) invest short-term and then pull out (11) then try to get back in (12) . It’s about being consistent, steady, building (13) reputation, building confidence and then rewards will (14) . It’s a consistent ability to anticipate need. It’s insightfulness that helps brands to (15) ahead.
How are local Chinese brands doing against the multinationals —China’s been built (16) local brands and there are a billion of them and they are (17) spending sums of money locally that really dominate the (18) . But the future is Chinese brands moving outside of (19) and marketing globally, because China’s got to move from a commodity economy to a (20) sophisticated economy, which fundamentally (21) brands. There isn’t a major economy in the world that (22) based upon producing great brands, because they provide far better margins and more sustainable (23) .
Has Asia produced any truly global brands —Japan has. Some of the major companies (24) do really very well with brands. In Korea, some of them (25) but some of them need to catch up in terms of understanding how to really build global brands.