问题
单项选择题
在工程咨询市场发育比较完善的情况下，( )是咨询工程师为业主提供咨询服务的重要业务领域。
A．机会研究
B．初步可行性研究
C．可行性研究
D．项目评估
答案
参考答案：A
解析：机会研究是进行初步可行性研究之前的准备性调查研究。在工程咨询市场发育比较完善的情况下，机会研究是咨询工程师为业主提供咨询服务的重要业务领域。
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在工程咨询市场发育比较完善的情况下，( )是咨询工程师为业主提供咨询服务的重要业务领域。
A．机会研究
B．初步可行性研究
C．可行性研究
D．项目评估
参考答案：A
解析：机会研究是进行初步可行性研究之前的准备性调查研究。在工程咨询市场发育比较完善的情况下，机会研究是咨询工程师为业主提供咨询服务的重要业务领域。
| 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. |
From the passage we can learn that ______.
A．people migrate like animals
B．only birds migrate
C．the female fur seals migrate only to the Gulf of Alaska
D．not all mammals migrate