急性白血病引起贫血最重要的原因是A．红细胞寿命缩短 B．红系统正常增殖受到白血病细胞

下列4种软件中属于系统软件的是

A．Word2000

B．UCDOS系统

C．财务管理系统

D．豪杰超级解霸

In only two decades Asian Americans have become the fastest-growing US minority．As their children began moving up through the nation’s schools，it became clear that a new kind of culture was coming out．Their achievements are made in the nation’s best universities，where mathematics，science and engineering departments have taken on a decidedly Asian character.This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their education abroad arrived in the U.S. with a solid grounding in mathematics but little or no knowledge of English.They are also influenced by the promise of a good job after college．Asians feel there will be less unfair treatment in areas like mathematics and science because they will be judged more objectively(客观)．And the money spent on education is more immediately returned in something like engineering than with an arts degree．

Most Asian-American students owe their success to the influence of parents who are determined that their children should take full advantage of what the American educational system has to offer.An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do，and it helps．Many researchers also believe there is something in Asian culture，such as family value，the importance of education and so on that lead to their success.

Both explanations for academic success worry Asian Americans because of fears that they could cause the native Americans’unhappiness．Many can remember when Chinese,Japanese and Filipino immigrants(移民)were unequally treated because of social separation．Indeed，it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.

小题1:Few Asian-American students major in human sciences mainly because       .

A．they are afraid they might meet with unfair judgement in these areas

B．there is a wide difference between Asian and Western cultures

C．they know little about American cultures and Western cultures

D．their English is not good enough小题2:Asian-Americans prefer something like engineering to an arts degree because________.

A．people majoring in engineering are respected

B．people with an arts degree are looked down upon

C．they can’t find a job with an arts degree

D．they can earn more money after graduation小题3:While making great achievements at college，Asian-American students________.

A．are afraid that their academic successes take on a strong Asian character

B．still worry about unfair treatment in society

C．generally feel it a shame to have to depend on their parents

D．feel they are mistreated because of limited knowledge of English小题4:According to the passage，the major factors determining the success of Asian-Americans are   .

A．Asian culture and the American educational system

B．Asian culture and a solid base in basic mathematics

C．hard work and parental help

D．hard work and a limited knowledge of English

能力倾向测验具有（），可以判断一个人的能力优势与成功发展的可能性，为职业选择、人员配置、职业设计与开发提供科学依据。

A.诊断功能与开发功能

B.诊断功能与预测功能

C.开发功能与配置功能

D.配置功能与选拔功能

下列选项中审查利润表所列指标的可信性时所涉及的指标有（）

A.流动比率

B.速动比率

C.净资产增长率

D.投资报酬率

E.成本利润率

在基站侧进行小区闭塞操作，以下说法正确的有（）

A.若采用高优先级闭塞，小区立即闭塞，所有业务立即终止

B.若采用中优先级闭塞，闭塞时需要选择定时器，定时器到后执行闭塞操作

C.若采用低优先级闭塞，无业务时立即执行闭塞操作；有业务时需要等待业务终止才会执行闭塞操作

D.有业务进行时，前台会返回小区闭塞失败，不允许进行闭塞操作