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问题 单项选择题

桔生淮南则为桔，生于淮北则为枳。外部环境对人的影响虽不是根本的，但也是十分重大的。这句话意味着( )

A．必须十分重视外部环境的影响

B．事物的内部矛盾才是事物发展变化的根本原因

C．一个跟着好人生活的人绝不会变坏

D．一个人做坏事必然是受了坏人的影响或指使

答案

参考答案：A

单项选择题

肾小管液中NaCl被显著稀释的部位是（）

A．近端小管

B．髓袢降支细段

C．髓袢升支细段

D．髓袢升支粗段
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问答题

Have you had a headache during a test Have you ever been so worried about something that you have a headache or even can’t sleep at night If so, then you know what stress is. Stress is what you feel when you are worried about something. This worry in your mind can make your body feel bad. You may feel angry, sad, scared, or afraid—all of which can give you a stomachache or a headache.
However, there are different kinds of stress. Some kinds of stress are good and others are bad. Good stress might happen when you’re called to answer questions in class or when you have to give a speech. This kind of stress can help you to get things better done. For example, you may do a better job on your test if the stress pushes you to prepare better before the test.
On the other hand, bad stress can happen if stress lasts too long. You may not feel well if your parents are fighting, if a family member is sick, if you’re having problems at school, or if anything else makes you unhappy every day. That kind of stress isn’t going to help you. And it can actually make you sick.
The best way to fight stress is to have a balanced life. Make sure you keep your SELF in mind: Sleep, Exercise, Leisure(休闲), and Food. If you get enough sleep and eat properly, and if you exercise and leave time for fun, you’ll probably feel less stressed.

Title: Face the Stress
Meaning of stressStress is a　(68)　when you are worried about something.
Possible effectYou may feel uncomfortable in your　(69)　and body.

Good stress

· It might happen when you have to　(70)　in public.

· It will be more　(71)　for you to do the job successfully.

· It makes you　(72)　better before doing the job.
Different kindsBad stress

· It might happen if your stress　(73)　too long.

· You may not feel well with the　(74)　of a family member, problems at school or something else that worries you every day.

· It might stop you from getting your work well done.
How to keep stress　(75)　

Have a balanced life.

· Have enough sleep and have　(76)　food.

· Take exercise and have time to　(77)　yourself.

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