单项选择题

The main purpose of the passage is to ______.

A．compare skyscrapers with other modem structures
B．describe skyscrapers and their effect on the environment
C．support the use of stone in the construction of skyscrapers
D．illustrate some architectural designs of skyscrapers

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单项选择题What will the Bristol team support

A．Benefits of sunshine outweigh the risk of skin cancer.
B．People should spend less time in the sun.
C．Sunshine does more harm than good to skin.
D．Most of the skin disease are fatal.

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.