收益还原法的关键是还原利率的确定。（）

阅读下面的短文, 完成下面的任务。

     A new study finds people in big cities walking faster than before. Is the pace (节奏) of life in our cities

increasing? Yes, according to a recent study. Last year researchers visited 32 cities and measured how fast

people walked. They timed adults to see how long it took them to walk 18 meters along the sidewalk.

     Researchers found that walking speed today is about 10 percent faster than ten years ago. They also

learned that some of the biggest changes took place in Asian cities like Singapore and Guanzhou. The two

cities had the largest increase in walking speed. Nowadays, over half of people in the world live in cities.

Certainly the world's pace of life is becoming faster and cities are becoming more crowded.

1. 将划线部分译成汉语：

    ______________________________________________________

    根据短文回答问题

2. What does the new study find? 

    ______________________________________________________

3. For the study, how many cities did the researchers visit?

    ______________________________________________________

4. In Asia, which cities had the largest increase in walking speed? 

    ______________________________________________________

5. Does the passage mention why so many people live in cities? 

    ______________________________________________________

诊断AMI的确定性标志物是（）

A.LD

B.Mb

C.FABP

D.cTnT

E.CK-MB

土壤有效养分含量说明了土壤中能被作物吸收的有效养分的真实数量。

能缓和药性，以降低药物毒性的辅料是（）

A.酒

B.醋

C.蜂蜜

D.甘草汁

E.生姜汁

注：图中数据为基于5级量表的得分，5分表示安全感最高，1分表示安全感最低。

下列关于2007年我国城乡居民各种生活领域安全感得分的说法不正确的是（）。

A．城乡居民的药品安全感平均得分为2.38分

B．城乡居民在图中各生活领域的安全感得分大多低于3.0分

C．除药品外，农村居民在图中各生活领域的安全感得分均高于城市、县镇居民

D．总体上说，县镇居民的安全感得分与农村较接近，与城市差别较大