会计电算化系统中，( )模块处于核心地位。 A．账务处理模块 B．工资核算模块

Part 3

Questions 19-25

·Read the following passage and answer questions 19-25.
·For questions 19-25, choose the correct answer from A, B, C and D.
·Mark your answer on the Answer Sheet.
The number of speakers of English in Shakespeare’s time is estimated to have been about five million. Today it is estimated that some 260 million people speak it as a native language. Mainly in the United States, Canada, Great Brittany, Ireland, South African, Australia and New Zealand. In addition to the varieties of English found in these areas, there are great many regional and social varieties of the language, as well as various levels of usage that are employed both in its spoken and written forms.
It is virtually possible to estimate the number of people in the world who acquired adequate work knowledge of English in addition to their own languages. The purpose for which English is learned and the situation in which such learning takes place are so varied that it is difficult to define and still more difficult to assess what constitutes an adequate working knowledge for each situation.
The main reason for the widespread demand for English is its present-day importance as a world language. Besides serving the infinite needs of its native speakers, English is a language in which some of the most important works in science, technology, and other fields are produced and not always by native speakers. It is widely used for such purpose as meteorological and airport communications, international conferences, and the spread information over the radio and television networks of many nations for the number of developing countries, especially former British colonies. Many of these countries have multi-lingual populations and need a language for internal communication as well as for international communication and for access to the scientific and technological development in the west.

According to the passage, which of the following statements is NOT true

A．Some 260 million people in the word have an adequate working knowledge of English.

B．There are some 260 million native speakers of English in the world.

C．It is also impossible to estimate the number of people with an adequate working knowledge of English.

D．People learn English for variety of reasons.

在微生物的培养过程中，如果要缩短其生长的延迟期，可以在菌种、培养基和其它方面采取哪些措施。（15分）

锅炉在停止运行状态下，对锅炉安全状况进行的检验称（）。

A、外部检验

B、内部检验

C、水压试验

PCCPCH污染优化的关键是形成一个主PCCPCH。RF优化阶段可以采取的调整手段有（）。

A.优先考虑调整天线方位角和下倾角

B.调整个别小区PCCPCH信号功率

C.调整天线挂高

D.调整天线位置

E.换用电子可调天线

F.增加信源

合同的特点是（）、（）、（）和强制性。