循回期（circulative period）

读图“我国黄土高原某地地表形态速写图”完成下列要求：

（1）图中所表示的黄土高原地表形态的特点是：____________________________。

（2）图中所示黄土高原地表形态的形成原因有哪些？

（3）黄土高原水土流失严重，生态环境恶化。治理水土流失，改善生态环境的措施有：

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．above

B．upon

C．against

D．with

多媒体计算机中所处理的视频信息，是指运动图象。

下列关于施工合同(示范文本)约定的工程计量程序的说法中，不正确的有( )。

A．承包人应按专用条款约定的时间向工程师提交已完工程量报告

B．工程师接到承包人报告后一个星期内核定工程量，并在计量前48h通知承包人

C．工程师计量时一定要有承包人代表参加，否则计量无效

D．对于承包人超出设计图样范围和因承包人原因造成返工的工程量，工程师不予计量

E．工程师收到承包人报告后7d内未计量的，从第8d起，承包人报告中开列的工程量视为已被工程师确认

桡神经的组成是（）

A.C4-7

B.C2-3

C.C5-7

D.C5-8

E.C1-2