单项选择题

To check population growth is necessary when（）.

A.there are decreasing productivity gains
B.there are increasing productivity losses
C.we are close to reaching the sustainability limits at a world level
D.people become a cost

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单项选择题

What does the question ’How could you have nine wives？’imply？（）

A.The old man is too old to have nine wives.
B.The old man shouldn’t have had nine wives.
C.The old man could marry only once because he is member of the Church of Rome.
D.The old man could have only a wife for he is a Christian.

单项选择题

According to the passage，why was Bemardino Cirillo disappointed with the music of his time？（）

A.It was not complex enough to appeal to musicians.
B.It had little emotional impact on audiences.
C.It was too dependent on the art and literature of his time.
D.It did not contain enough religious themes.