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问题 选择题

极地狐的耳朵比大耳狐的小，这样可以（　　）

A．使听觉更灵敏B．不易被食狐动物发现
C．适应北极的寒冷气候 

答案

现在生存的每一种生物，都具有与环境相适应的形态结构、生理特征．在北极地区，气候及其寒冷，极地狐比大耳狐的耳朵小，可以减少热量的散失，保持体温，这是对北极寒冷环境的一种适应，也是对自身的一种保护．故C符合题意．

故选：C

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.

（2）处填（）

A.labor

B.consumer

C.archives

D.celebrity
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填空题

物体之间的作用力和反作用力总是（）相等（）相反作用在（）上。
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