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问题 单项选择题

《中华人民共和国环境保护法》中规定：可能发生重大污染事故的企业事业单位，应当采取措施，加强( )。

A．管理

B．监理

C．监督

D．防范

答案

参考答案：D

不定项选择
不定项选择
下列说法正确的是（    ）
A．在导体中只要有自由电荷在运动就一定形成电流

B．电流方向就是电荷定向移动的方向

C．电路中电荷的定向移动方向总是沿着高电势到低电势的方向

D．金属导体两端存在电势差时，必有电流通过导体
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填空题

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. sharply B. quickly C. highly D. slowly
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