下列属于担保物权的有( )。 A．抵押权 B．留置权 C．相邻权 D．质权 E．业

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.

大中河流，当弯曲系数为( )时，可视为弯曲河流。

A．1.1
B．1.2
C．1.3
D．1.4

句型转换.

1. The boy has fun by the sea. (改为同义句)

    The boy _____ _____ by the sea.

2. There are some students in the library. (改为否定句)

    There are _____ _____ students in the library.

3. The hotel is on Green Street. (对划线部分提问)

    _____ _____ the hotel?

4. You can take a bus there. (改为同义句)

    You can go there _____ _____. 

5. Ling ping is on Lin Tao's right. (改为同义句)

    Lin Tao is on Ling Ping's _____.

由于戒烟给人造成很大压力，还会带来体重的增加，所以很难戒烟。但戒烟或许就如同用一种有益健康的活动来替代另一种有害健康的活动那样简单。在一项研究中，对一半试图戒烟者只提供停止吸烟的活动程序，而对另一半人则在此之外又提供了15个星期的增氧健身活动。研究进行到一个月时，前一组中无人戒烟，而后一组中则有40%的人停止了吸烟。 以下陈述如果为真，都能支持上述论证，除了( )。

A．经常锻炼能防止体重增加

B．每组中都包括了400个随机挑选的参加者

C．当习惯于经常锻炼的不吸烟者停止锻炼时，体重不会增加

D．增氧健身活动能刺激大脑产生有助于减轻压力的内啡肽

实验室检查