单项选择题

Which of the following is NOT true about insects

A．Insects can see more colours than human beings.
B．Insects can see ultraviolet rays which are invisible to men.
C．All insects have their favorite colours.
D．The world is more colorful to insects than to human beings.

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单项选择题

Which of the following statements is NOT true according to the passage

A．One third of the world's population drinks coffee.
B．Coffee is native to Colombia.
C．Coffee can keep one awake.
D．Coffee drinks were first made by Arabs.

单项选择题

Which country is the largest coffee producer

A．Brazil.
B．Colombia.
C．Ethiopia.
D．Egypt.