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【简答题】

Many s face a ( ) when they must choose whether or not to take time away from work and family in order to exercise.

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【简答题】Stress can reduce the effectiveness of your ( ) and make it easier for you to become sick.
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【简答题】An area of the brain called the pineal gland produces a ( ) called melatonin that helps people get the right amount of sleep.
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【简答题】Soft drinks and candy bars often contain a lot of ( ) sugar, which is not as healthy as the natural sugars in fruits.
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【单选题】If you alleviate something, it's going to get much worse.
A.
True
B.
False
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【单选题】Bread, potatoes, and rice all contain a lot of carbohydrates.
A.
True
B.
False
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【单选题】If you are suffering from fatigue, you won't feel tired at all.
A.
True
B.
False
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【单选题】Someone faced with a big dilemma will be able to easily choose what to do.
A.
True
B.
False
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【单选题】Your body contains hormones that promote growth and control how your cells and tissues work.
A.
True
B.
False
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【单选题】People digest their food in their stomach and intestines.
A.
True
B.
False
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【单选题】Someone with a low metabolism can change food into energy very quickly.
A.
True
B.
False
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