单项选择题

The idea of this article is that （）.

A．birds are important in our lives
B．animals are important in our lives
C．nature is important in our lives
D．Audubon was especially interested in birds

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热门试题

单项选择题

Terra will be a better satellite because （）.

A．no other country can make one like it
B．it is much cheaper to operate
C．it is more sophisticated than Landsat 7
D．Terra will show energy gains

单项选择题

According to the passage, which of the following statements is true（）

A．Black stands for unhappiness.
B．Black makes people think of night.
C．Black makes people think of sorrow.
D．Black is the color of the mournin