跨国公司在给东道国经济带来积极影响的同时，也会带来诸多消极作用，主要包括（）。
A．东道国的主导产业和新兴工业部门可能为外国资本所控制
B．整个经济可能受到投资国跨国公司经营战略的影响，经济结构和产业结构的合理调整以及技术自主开发可能受阻
C．跨国公司能够促进东道国的技术进步
D．污染严重、高耗能产业可能被转移到后进国家
参考答案：A, B, D
| Some people associate migration mainly with birds. Birds do travel vast distances, but mammals also migrate. An example is the caribou, reindeer that graze on the grassy slopes of northern Canada. When the weather turns cold, they travel south until spring. Their tracks are so well-worn that they are clearly visible from the air. Another migrating mammal is the Alaska fur seal. These seals breed only in the Pribilot Islands in the Bering Sea. The young are born in June and by September are p enough to go with their mothers on a journey of over 3,000 miles. Together they swim down the Pacific Coast of North America. The females and young travel as far as southern California. The males do not journey so far. They swim only to the Gulf of Alaska. In the spring, males and females all return to the islands, and there the cycle begins again. Whales are among the greatest migrators of all. The humpback and blue whales migrate thousands of miles each year from the polar seas to the tropics. Whales eat huge quantities of plankton. These are most abundant in cold polar waters. In winter, the whales move to warm waters to breed and give birth to their young. |
Which of the following is NOT described in the passage
A．Whales migrate to breed and give birth to their young.
B．Whale-watching in Boston in summer is attracting.
C．Seals breed in the north before migration.
D．Reindeer feed on grass.