较早出现淋巴和血行转移的肺癌是（） A.腺癌 B.鳞癌 C.大细胞癌 D.小细胞癌

从一天来看，工业用电负荷一天内出现三个高峰。 （）

在HRCT扫描的必备条件中，哪项与降低噪声有关()

A．CT机固有空间分辨率0.5mm 

B．扫描层厚为1～1.5mm的薄层扫描 

C．图像重建使用高分辨率算法 

D．应用512×512以上矩阵采集 

E．使用高kV和高mAs扫描

对施工控制网为轴线形式的建筑场地，最方便的位置放线测量方法是()。

A.直角坐标法 

B.极坐标法 

C.角度前方交会法 

D.距离交会法

阅读理解

     Many people wonder why the United States has been a hot spot for Chinese students for years,despite its extremely strict visa policy.On the other hand,China's rise as an economic powerhouse is resulting in a

rapid expansion of its higher education system,making it the fastergrowing destination for American foreign exchange students.

     Recently,according to a study by the Institute of International Education,a research organization based

in New York,the number of American students seeking higher education in China has never been greater,

increasing by 90 percent from 2002 to 2004.Alan Goodman,president of the institute,believes that the_

phenomenon lies in the pace of change in China,which is spending billions of dollars to expend and

transform its higher educational facilities into worldclass institutions.

     "China is a job market," said Professor Chou,professor of East Asian Studies at Princeton University.

"Twenty years ago,only those interested in Chinese literature would study the Chinese language.Now all

professors have opened up."

     China now ranks 9th as a host destination for American students,advancing from the No.12 spot it held a year earlier.The study revealed that Britain continues to be the leading destination,attracting 16.8 percent of all American students who study abroad.On the other hand,in the 2004～2005 academic year,China

sent more than 62,000 students to the United States,nearly 60 percent more than a decade earlier.

According to the study,the Chinese now make up 11 percent of foreign students in the United States,the

secondlargest group behind students from India.

1. From the first paragraph,we know that for many years Chinese students want to go to the US but

________.

A. Chinese government refuses to give a visa

B. it is extremely difficult to get a visa

C. it results in a rapid expansion

D. China becomes a fastgrowing country

2. According to the text,"the phenomenon" in the second paragraph refers to________.

A. more American students' seeking higher education in China

B. the pace of change in China during the past few years

C. founding a research organization based in New York

D. expending and transforming its higher educational facilities

3. Ten years ago,China sent about________students to the United States.

A. 62,000  

B. 55,000  

C. 38,750  

D. 6,820

列入武警部队序列的消防、警卫、公安边防部门的人员违反治安管理的案件，由（）

A.武警部队保卫部门管辖

B.公安机关管辖

C.军地双方共同管辖

D.专业公安机关管辖