单项选择题

Some people dislike exercise because ______.

A．they think it is physically exhausting
B．they find it hard to exercise while on a diet
C．they don't think it possible to walk 3 miles every day
D．they find consulting caloric-expenditure charts troublesome

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单项选择题

Which of the following is the most likely inference about the decision to promote gardening at forts

A．It was expensive to import product from far away.
B．Food brought in from outside was often spoiled.
C．Gardening was a way to occupy otherwise idle soldiers.
D．The soil near the forts was very fertile.

单项选择题

What is said about the average American in the passage

A．They tend to exaggerate the healthful effect of "light" beer.
B．They usually ignore the effect of exercise on losing weight.
C．They prefer "light" beer and low-calorie bread to other drinks and food.
D．They know the factors that play a positive role in keeping down body weight.