以“模式标本采集圣地”闻名于世的地方是（）。 A.鼓浪屿 B.武夷山 C.井冈山 D

彬彬用10.20元买了一张唱片，15.50元将它卖掉， 又用20.80元买回来，最后25.50元卖掉。彬彬赚了或赔了多少元？

中药性能的主要内容包括

A.升降浮沉和有毒无毒

B.四气、五味、归经、升降浮沉、毒性

C.功效与不良反应

D.药物的偏性

阅读理解。

     Decisions, decisions! Our lives are full of them, from the small ones to the life-changing. The right to

choose is central to everyone. Yet sometimes we make bad decisions that leave us unhappy or full of regret.

Can science help?

     Most of us know little about the mental processes that lie behind our decisions. Luckily, what psychologists

are finding may help us all make better choices. Here are some of their amazing discoveries to help you make

up your mind.

     Consider your emotions. You might think that emotions are the enemy of decision-making, but in fact they

are a part of it. Whenever you make up your mind, your brain's emotional centre is active. University of

Southern California scientist, Antonio Damasia, has studied people with damage to only the emotional parts of

their brains, and found that they were unable to make basic choices about what to wear or eat. Damasia thinks

this may be because our brains store emotional memories of past choice, which we use to help the present

decision-making.

     However, making choices under the influence of an emotion can greatly affect the result. Take anger for

example. A study by Nitika Garg of the University of Mississippi and other scientists found the angry shoppers

were more likely to choose the first thing they were offered rather than considering other choices. It seems

that anger can lead us to make quick decisions without much thinking.

     All emotions affect our thinking and motivation,so it may be best to avoid making important decisions under

their influence. Yet strangely there is one emotion that seems to help us make good choices. The American

researchers found that sad people took time to consider the various choices on offer, and ended up making the

best choices. In fact many studies show that people who feel unhappy have the most reasonable view of the

world.

1. What does the underlined word "central" mean? [ ]

A. in the middle

B. easy to reach

C. important

D. having power

2. Damasia's study suggests that _____. [ ]

A. emotions are the enemy of decision-making.

B. our brain has nothing to do with decision-making.

C. people with physical damage find it hard to make up their minds.

D. our emotional memories of past choices can affect present decisions.

3. According to the text, what may help us make better decisions? [ ]

A. To think about happy times.

B. To make many decisions at a time.

C. To stop feeling regretful about the past.

D. To learn about the process of decision-making.

4. Why are angry shoppers more likely to choose the first thing they are offered? [ ]

A. They often forget their past choices.

B. They make decisions without much thinking.

C. They tend to save time when shopping.

D. They are too angry to bargain.

5. What do we learn from the text? [ ]

A. Emotions are a part of decision-making.

B. Sad people always make worse choices.

C. No emotion seems to help us make good choices.

D. Only sad feelings affect our thinking and motivation.

一辆汽车以25m/s的速度沿平直公路匀速行驶，突然发现前方有障碍物，立即刹车，汽车以大小5m/s²的加速度做匀减速直线运动，那么刹车后2s内与刹车后6s内汽车通过的位移之比为（）

A.1︰3

B.16︰25

C.2︰3

D.16︰9

从一个水龙头打水，有人用大桶，有人用小桶。无论让谁先打，全部打完水的时间是一样的，因为水龙头的流速是一样的。但就效率而言，先让用小桶的人打水会缩短所有人打水的总时间，一定时间内可以让更多的人完成打水的任务，体现了“短作业优先法”。这种做法给我们的启示有（）

①促进公平需要合理的机制和政策

②合理的公平表现为相对平等

③效率是公平的物质前提和保证

④效率的提高意味着社会财富的增加

A.①②

B.①③

C.②③

D.①④