物业管理用房的所有权依法属于业主。

依据《安全生产法》的规定，矿山建设项目和用于生产、储存危险物品的建设项目竣工投入生产或者使用前，必须依照有关( )的规定对安全设施进行验收。

A．法律、法规
B．法律、法规、标准
C．法律、行政法规
D．法律、法规、规章、标准

我国法定计量单位的构成包括（）。

A.SI基本单位，SI辅助单位

B.SI中具有专门名称的导出单位

C.国家选用的非SI单位

D.由以上单位构成的组合形式的单位

2010年3月5日第十一届全国人民代表大会第三次会议在北京召开。这所反映北京的职能是[ ]

A、商业中心

B、经济中心

C、交通中心

D、政治中心

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.

固执的行为是依据当下的实际情况做出的抉择；而理性的行为往往不顾客观事物的变化，执着按过去的经验和惯例行事。