"In its infancy" (Line 3, Para. 4) means______.
A. in the prime of life
B. at its best
C. in poverty
D. at its primitive stage
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What is the main point of the passage？
A. Humans are destroying thousands of species.
B. There are thousands of insect species.
C. The sea is even richer in life than the rain forests.
D. Coral reefs are similar to rain forests.
各级人民政府对具有重大科学文化价值的()等自然遗迹，以及人文遗迹、古树名木，应当采取措施加以保护，严禁破坏。
A. 水源涵养区域
B. 地质构造、著名溶洞和化石分布区、冰川、火山、温泉
C. 动植物分布区
D. 居住地
十月革命前夕，彼得格勒苏维埃的主席是()。
A. 斯大林
B. 布哈林
C. 托洛茨基
D. 列宁
The writer believes that because of the increasing use of interviews
A. there are too many current affairs programs
B. standards in broadcasting have declined
C. the cost of broadcasting has increased
D. Roadcasters have become less popular
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