骨质软化是由于骨组织的有机成分和钙化均减少。

每年台风都会造成一定的人员和财产损失。然而也有专家指出，灾后重建工作会带来巨大的投资需求，甚至高过财产损失导致的消费需求的减小，使内需大幅度提升，从而在一定程度上会推动当地经济增长。这表明 [ ]

A．事物的内部矛盾有主次之分

B．事物的发展是前进性和曲折性的统一

C．量变是质变的前提和基础

D．任何事物都包含既对立又统一的两个方面

阅读理解

     The wellknown Rushmore National Monument in the United States is built on the Rush Moore Peak,

1829 meters above sea level, of the Black Hills in the south-west of South Dakota.It is a group of huge

stone statues of four American presidents, George Washington, Thomas Jefferson, Abraham Lincoln

and Theodore Roosevelt.President Washington is the founding father of the country; the 3rd President

Jefferson drafted the US Declaration of Independence; the 16th President Lincoln issued the

Emancipation Proclamation and the 26th President Roosevelt protected the average people's right to

compete fairly with trusts.All 1829 meters above sea level, made outstanding achievements for their

country.They were pioneers of US history.

     The stone statues of presidents were built at the suggestion of a historian in the State of Dakota, with

a view to carrying forward the US pioneering spirit everlastingly.

     The statues are 18 meters high.They are the highest and greatest realistic stone statues in the world,

taller than a 6storied building and larger than the Great Sphinx of Egypt.The size of each head is 20sq

mt, with a 20meterlong face, a 7meterlong nose, a 2.6meterwide mouth and two 1.5meterwide eyes.

Though not facing the same direction, they are all lifelike and look ahead gravely in harmony with fixed

gazes.On clear days, one can have a sight of the four presidents with their firm and steady expression at

a distance of dozens of kilometers.

     Since the stone sculpture is unique in style, the Monument is now the US National Art Centre of

Popular Education.Groups of people keep streaming everyday to the site for a visit and tourists across

the world are also interested in taking a view of this great Monument.

1. Which statement is false according to the first paragraph?

A. The famous Rushmore National Monument is 1829 meters above sea level.

B. All the four presidents made great contributions to London.

C. the group of statues are made of huge stones.

D. The statues are built to honor the presidents in the US

2. Why were those four presidents chosen?Because the four presidents________.

A. made great contributions to their country

B. were pioneers of US history

C. played an important role in the different periods of the American history

D. all of the above

3. What are the statues like?

A. They look like a 6storied building.

B. They are like the great Sphinx of Egypt.

C. They are like true men standing there.

D. They are lifelike, looking ahead with fixed gazes.

4. For what groups of people across the world come to visit the Monument?They come________.

A. to learn the US pioneering spirit

B. to look back upon the history of the US.

C. to learn the art of sculpture

D. to enjoy the view of the Monument

多径衰落也称瑞利衰落，对于这种快衰落，基站采取的措施就是采用（）的办法。

A、时间分集

B、频率分集

C、空间分集

D、振幅分集

由逍遥散变化为黑逍遥散，属于（）

A．药味加减的变化

B．药量增减的变化

C．剂型更换的变化

D．药味加减和药量增减变化的联合运用

E．药量增减和剂型更换变化的联合运用

《人口与计划生育法》中规定的公民应依法实施计划生育的义务有哪些（）

A、婚前医学检查

B、生育第一个子女应申请批准

C、非婚生育

D、生育第二个子女应申请批准