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问题 单项选择题

内部存储器和外部存储器相比有()特点。

A．容量小

B．速度快

C．容量大

D．速度慢

答案

参考答案：B

解析：【解析】软件维护员负责会计程序的维护，必须精通计算机程序设计和会计业务，熟悉系统并有一定的软件开发经验。

选择题

高温、催化剂条件下，某反应达到平衡，平衡常数K=。恒容时，温度升高，H2浓度减小。下列说法正确的是 [ ]

A．该反应的焓变为正值

B．恒温恒容下，增大压强，H2浓度一定减小

C．升高温度，逆反应速率减小

D．该反应的化学方程式为CO+H2OCO2+H2

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单项选择题

Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened (91) . As was discussed before, it was not (92) the 19th century that the newspaper became the dominant pree-leetronie (93) , following in the wake of the pamphlet and the book and in the (94) of the periodical. It was during the same time that the communications revolution (95) up, beginning with transport, the railway, and leading (96) through the telegraph, the telephone, radio, and motion pictures (97) the 20th-eentury world of the motor ear and the airplane. Not everyone sees that process in (98) . It is important to do so.
It is generally recognized, (99) , that the introduction of the computer in the early 20th century, (100) by the invention of the integrated circuit during the 1960s, radically changed the process, (101) its impact on the media was not immediately (102) . As time went by, computers became smaller and more powerful, and they became "personal" too, as well as (103) , with display becoming sharper and storage (104) increasing. They were thought of, like people, (105) generations, with the distance between generations much (106)
It was within the computer age that the term" information society" began to be widely used to describe the (107) within which we now live. The communications revolution has (108) both work and leisure and how we think and feel both about place and time, but there have been (109) views about its economic, political, social and cultural implications. "Benefits" have been weighed (110) "harmful" outcomes. And generalizations have proved difficult.

A．deeper

B．fewer

C．nearer

D．smaller
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