单项选择题

Passage Two

A．Sleep is highly variable, and wears out with age.
B．Falling asleep is a gradual process.
C．Sleeping less will help you lose weight.
D．People need to sleep eight hours a day.

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单项选择题

A．Stay off work. B．Drink plenty of liquids.C．Eat a lot of vegetables and fruit.D．Postpone your exercise when sick.

A．Stay off work.
B．Drink plenty of liquids.
C．Eat a lot of vegetables and fruit.
D．Postpone your exercise when sick.

单项选择题

The real intention behind the ban as we can learn from the passage is

A．to convince consumers of confusion due to labels and claims
B．to get rid of the milk manufacturer’s bad reputation
C．to prove the safety of rbST-treated cows’ milk
D．to safeguard the sale of milk in the market