计算结构或构件的强度，稳定性以及连接的强度时，应采用荷载设计值。

从具体占用者的角度来看，土地在有些情况下是有寿命的，特别是通过政府出让方式取得的土地使用权是有期限的。（）

According to a new survey, students’ safety has become a big problem. Nearly 50% of students say they are worried about robbery on the way to and from school. Now in main big cities in China , some schools have taught an unusual lesson: self-protection. Students like this lesson because there are no exams or boring classes. And they can learn how to save lives and know how to stop danger before it really happens.

Chen Haoyu, a teacher at Beijing No. 25 Middle School, gives young students advice on how to deal with danger.

If you are robbed

Keep calm. lf you can not cry for help or run away. Give the robber your money. Try to remember what the robber looks like and tell the police later.

If you are in a traffic accident

If a car hits you. You should remember the car number. If it is a bicycle, try to call your parents before you let the rider go. This is because you don't know how seriously you are hurt

If it is raining hard and there is lighting

Don’t stay in high places and stay away from trees.

When there is a fire

Get away as fast as yon can. Put wet things on your body and try to find an exit. Do not take the lift.

If someone is drowning

If you can’t swim, don’t get into the water. Cry out for help.

Remember that danger is never as far away as you think. Take care of yourself at all time!

小题1: Why do students like the self-protection lesson?

①Because there are no tests.

②Because the lessons are boring

③Because they can learn how to save lives.

④Because they can know how to stop danger before it happens.

A．①②

B．②③

C．①②④

D．①③④小题2: What will you do if a bicycle hurts you?

A．I will remember the bicycle number.

B．I won't let the rider go until I call my parents.

C．I will let the rider go before I call my parents.

D．I will let the rider go because I know how seriously I am hurt.小题3: lf your house is on fire, you must__________.

A．put dry things on your body

B．run quickly and take the lift

C．run away and find an exit as quickly as you can

D．take everything you have and then run away小题4:  There are ________ways of self-protection mentioned in the passage.

A．3

B．4

C．5

D．6小题5: The best title for this passage is _________.

A．How to Keep Calm

B．Self-protection

C．An usual lesson

D．Danger

男孩，8岁，因咳嗽、胸痛、高热入院。B超显示右胸少量液性低回声区。为进一步确诊应做何检查（）

A.血常规

B.胸腔穿刺

C.CT检查

D.胸片

E.开胸探查

一个人站在高处将小球水平抛出，下列关于小球的运动情况的叙述正确的是(不计空气阻力) [ ]

A、当小球下落的竖直分位移与水平分位移相等时，其竖直分速度与水平分速度的比是2∶1

B、当小球下落的竖直分位移与水平分位移相等时，其竖直分速度与水平分速度的比是1∶2

C、当小球下落的竖直分速度与水平分速度相等时，其竖直分位移与水平分位移的比是2∶1

D、当小球下落的竖直分速度与水平分速度相等时，其竖直分位移与水平分位移的比是1∶2

下列句子中，没有语病的一句是   [ ]

A．多年来，秀水市场凭借丰富的商品、可靠的质量、合理的价格和周到的服务吸引了大量消费者，其中超过40%左右是慕名前来的国际友人。   

B．我国西部地区的湖泊出现萎缩乃至干涸的现象是全球气候变暖、降水减少、人为破坏等因素造成的，环保人士呼吁采取有效措施保护湖泊。   

C．在即将开幕的伦敦奥运会上，怎样提高裁判执法水平，以确保为全体运动员创造一个公平竞争的问题，仍是各国体育代表团关注的焦点。   

D．“新生代农民工”已经占到我国农民工总数的60%，如何使这些“80后”“90后”青年更好地融入到城市生活中，才能避免被边缘化。