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问题 选择题

下列化学用语正确的是（ ）

A．一氯甲烷的分子式：

B．乙酸的实验式：

C．乙炔的结构简式：

D．羟基的电子式：

答案

答案：A

乙酸的实验式为：CH2O，选项中给的是乙酸的分子式，故B错误；

C中的碳碳三键不能省，故错误；

D中氧原子的最外层应有7个电子，故错误；

填空题

  68×4×5=68×（4×____ ）

（80×25）×2=80×（____×2）

（25×9）×8=（____×____）×9

  251+378+349=（____+____）+378
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单项选择题

The China boom is by now a well-documented phenomenon. Who hasn’t (1) the Middle Kingdom’s astounding economic growth (8 percent annually), its mesmerizing (2) market (1.2 billion people), the investment ardor of foreign suitors ($40 billion in foreign direct investment last year (3) ) China is an economic juggernaut. (4) Nicholas Lardy of the Brookings Institution, a Washington D. C.-based think tank,

" No country has (5) its foreign trade as fast as China over the last 20 years. Japan (6) its foreign trade over a 20-year period; China’s foreign trade as quintupled. They’ve become the pre-eminent producer of labor-intensive (7) goods in the world " . But there’s been (8) from the dazzling China growth story—namely, the Chinese multinational. No major Chinese companies have (9) established themselves, or their brands, (10) the global stage. But as Haier shows, that is starting to change. (11) 100 years of poverty and chaos, of being overshadowed by foreign countries and multinationals, Chinese industrial companies are starting to (12) on the world.A new generation of large and credible firms has (13) in China in the electronics, appliance and even high-tech sectors. Some have reached critical mass on the mainland and are now (14) new outlets for their production—through exports and by building Chinese factories abroad, chiefly in Southeast Asia. One example: China’s investment in Malaysia (15) from $8 million in 2000 to $766 million in the first half of this year. (16) China’s export prowess, it will be years (17) Chinese firms achieve the managerial and operational expertise of Western and Japanese multinationals. For one thing, many of its best companies are still at least partially state-owned. (18) , China has a shortage of managerial talent and little notion of marketing and brand-building. Its companies are also (19) by the country’s long tradition of central planning, inefficient use of capital and antiquated distribution system, (20) makes building national companies a challenge.

（4）处填（）

A. As

B. As to

C. Judging by

D. According to
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