单项选择题

Difficulties and hardships have ______ the best qualities of the young geologist.

A. brought out
B. brought about
C. brought forth
D. brought up

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单项选择题

Question 21 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, listen to the news.

A．democratic
B．unfair
C．out of control
D．in perfect order

单项选择题

Question 28 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, Listen to the news.

A．Planting more trees.
B．Cutting down trees in snow regions.
C．Melting snow.
D．Growing flowers of a certain species.

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