关系数据库的体系结构中,与存储文件相关的是A.外模式 B.内模式 C.子模式 D.逻

题型:单项选择题

问题:

关系数据库的体系结构中,与存储文件相关的是

A.外模式

B.内模式

C.子模式

D.逻辑模式

考点:计算机等级考试信息管理技术国家计算机三级(信息管理技术)77
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致密斑的功能是()

A.感受远端小管内滤液的Na+浓度变化

B.感受细段内滤液的Na+浓度变化

C.感受集合管内滤液的Na+浓度变化

D.感受近端小管内滤液的Na+浓度变化

E.感受髓襻内滤液的Na+浓度变化

题型:单项选择题

该患者出现的是哪种奔马律

A.左房奔马律

B.右房奔马律

C.左室奔马律

D.右室奔马律

E.C+D重叠奔马律

题型:单项选择题

习 * * 同志强调开展党的群众路线教育实践活动关键要把握好哪五个方面要求?

题型:单项选择题

Press Photographers


Good press photographers must have an "eye" for news, (26) journalists must have a "nose" for a good story. They must be able to interpret a story and decide rapidly how they can take (27) of the best opportunities to take pictures. The most difficult part of a press photographer’s job is that he or she has to be able to (28) a complicated situation with just one photograph. They rarely have second (29) and must be able to take the required (30) very quickly. Indeed, speed is essential — if the photographs are not (31) for the printing deadline, they are very unlikely to be of any (32) .
Most press photographers begin (33) with a local newspaper. There, the (34) is mostly for material of regional interest. Photographers may be expected to photograph a lot of unexciting events but to (35) the enthusiasm to put "something special" into every picture.
There is (36) competition among those who want to move from local to national newspapers. Here, the work is much more centered on news. The photographer must work (37) greater pressure and (38) more responsibility. Only (39) reliable, talented and resourceful photographers (40) this difficult move. The work is tough and can be (41) . On an overseas assignment, photographers may have to (42) unfamiliar food and accommodation, physical and mental stress, and (43) difficulty in transporting the pictures from an isolated area to get them to the newspaper (44) They also have to (45) the competition from other publications.

A. on time B. by the time C. for a time D. with time

题型:单项选择题

客运经营者要按规定的班次、路线运行,保证安全正点,不能()。

A.站外停车

B.随意绕路

C.中途将旅客交给其他车辆

D.强行拉客

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