因科学研究的需要,必须进入国家级自然保护区核心区从事科学研究观测、调查活动的,必须经()批准。
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Some economists (1)_____ between the international firm and the multinational company in the following way: the "international firm" is a term that (2)_____ enterprises with various degrees of world orientation in their business; (3)_____, the "multinational company" is one type of international firm. The international firm engages in any activity or (4)_____ of activities from exporting, importing and licensing to full scale manufacturing in a number of countries. The international (5)_____ of such a company varies from the point at which overseas sales and profits take on importance and top management begins to (6)_____ some attention to them to the stage (7)_____ the company is globally oriented in its marketing, production, (8)_____, and other decisions and considers alternative opportunities around the world.
When a company reaches the latter stage, it becomes (9)_____. Thus, the multinational company is one type of international company. It is a (10)_____ developed international company with a deep worldwide involvement and a global (11)_____ in its management and decision making. More (12)_____, the multinational company in manufacturing does business in a number of countries; it has a substantial commitment of its resources in international business; it (13)_____ international production in a number of countries; and it has a (14)_____ perspective in its management. Significant (15)_____ exist among multinational companies. First, such a company may not (16)_____ do business in every region and country in the world, (17)_____ it considers opportunities throughout the world. Second, it has a (18)_____ portion of its assets invested in international business; (19)_____ it makes a substantial part of its sales and earns a considerable part of its (20)_____ overseas.
A. recognize
B. distinguish
C. discover
D. detect
听力原文:W: That clock doesn't work. I'm going to send it to the watchmaker's next week.
M: Don't do that. I can fix it myself.
W: You? You can fix it?
M: Why not? I have done it before.
W: That's why it doesn't work now.
What has happened to the clock?
A. It has been fixed.
B. It has stopped working.
C. It has been sent to the watchmaker's.
巷道支护荷载监测的内容包括()。
A. 自重应力
B. 构造应力
C. 水平荷载
D. 支架荷载
在输入数据时,键人前导符()表示要输入公式。
A. ,
B. +
C. =
D. %