单项选择题

Which of the following is not the benefit of sunshine according to Andrew Ness

A．Sunlight helps make Vitamin D which can prevent rickets in children.
B．Sunshine is useful for treating certain skin conditions.
C．Sitting in the sun makes people feel good.
D．Darker skin looks healthier.
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单项选择题
With what topic is paragraph 4 mainly concerned
A．The importance of management techniques.
B．The complexity of hospital design.
C．Uses of computers in industry.
D．Applications of the systems approach.
单项选择题
The main idea of this passage is ______.
A．children despise their parents
B．the distinction between parents' duties and the children's
C．over-devotion to the children results in trouble for the parents themselves
D．how a loafer is produced
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