正常人精神紧张时可以引起下列哪种变化()A．收缩压、舒张压升高 B．收缩压、舒张压均

建设工程项目建成后，在规定的使用年限和正常的使用条件下，应保证工程项目使用安全，建筑物、构筑物和设备系统性能稳定。这是项目质量的( )要求。

A．经济性
B．功能性
C．观感性
D．可靠性

影响社会总需求与总供给的平衡的重要因素包括（）。

A.财政收支是否平衡

B.投资需求

C.市场货币流通量

D.进出口商品的供需是否平衡

E.公民的消费习惯

The United States will introduce a new and comprehensive(综合的) exam for students who seek to study in American and other English-speaking countries, Xinhua News Agency reported from New York.

The exam, which stands for a great change from the current English level test, was disclosed by Theresa Chang Wei Jen, associate director of the International Service of the US College Board, America’s leading educational organization.

The Advanced Placement International English Language (APIEL) will be offered for the first time throughout the world on May 10, 2002, said Jen.

However, the APIEL is a strange title to most Chinese students, and it is unlikely to soon gain the similarity of other already existing exams, such as the TOEFL(Test of English as a Foreign Language), the GRE(Graduate Record Examination), or the IELTS(International English Language Testing System).

“I have never heard of such a test and I would prefer the IELTS if I need another exam,” said Xu Jingyan, a graduating student from Beijing University of Aeronautics and Astronautics, who wants to study in England and has already taken the TOEFL.

Most of Xu’s classmates have never heard of the APIEL. “The APIEL is designed for international students who wish to get university studies in English-speaking countries, including the United States, Britain, Canada, and Australia.” said Jen.

The APIEL has been adopted, said Jen, because the TOEFL can no longer accurately reflect the abilities of students of using the English language comprehensively in an academic environment. Xinhua reported that a fairly large number of foreign students who earned high scores in TOEFL exam turned out to be very ordinary educational performers after admission.

Compared with the TOEFL, the APIEL measures a student’s ability to read, write, speak and understand English through testing his or her skills in listening comprehension, speaking with accuracy(精确) and resourcefulness, and writing with clarity and fluency(流畅), Jen said.

小题1:The United States will introduce a new exam because _______.

A．more and more students want to get further education in the USA

B．the Chinese people pay special attention to English studies with China’s entry into the WTO

C．the already existing exam systems seem to be far from perfect

D．it will bring the US government quite a lot of money小题2:Which of the following statements is TRUE according to the selection？

A．It will take quite a period of time for people to accept the APIEL.

B．The TOEFL is more popular with the Chinese than the IELTS.

C．A student will have to take the APIEL if he or she wants to study in English—speaking countries from 2002.

D．Chinese students will prefer the IELTS rather than the APIEL even in the future.小题3:The underlined word current in the second paragraph means _______.

A．modern

B．present

C．standard

D．formal小题4:Please decide which of the following would be the best title for this news report.

A．The Key to English-speaking Countries

B．The Four Skills in Learning English

C．TOEFL, IELTS and GRE to be Out of Date

D．New Exam Designed for Students

单纯性煤尘是指其游离SiO₂含量（）

A.在15%以下

B.在10%以下

C.在5%以下

D.在3%以下

E.在1%以下