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问题 填空题

如图所示，V是一个发光二极管，在a、b两端加上一定的电压（a端为高电势）时，发光二极管会发光．该电路如果看成是一个门电路，则应该是______电路（选填“与门”、“或门”、“非门”），当开关S处于______状态时发光二极管不亮．

答案

根据题意当开关开时，二极管会发光，当开关关闭时，二极管不发光，故该逻辑关系为非逻辑关系，对应的门电路为非门电路，故为非门电路、当开关S处于 闭合状态时发光二极管不亮．

答案：非门、闭合

填空题

Kofi Annan says helping survivors of last week’ s earthquake and (1) . in the Indian Ocean is (2) . The United Nations secretary-general says countnes that have offered aid must (3) and provide it. The offers add up to around (4) dollars. Unitd Nations officials say (5) of that is needed during the next six months.
The concern about offers of international aid is (6) . For example, the earthquake in Bam, Iran, in (7) of 2003 killed more than (8) people. Countries and groups offered hundreds of millions of dollars (9) . The United Nations says it has (10) only about (11) dollars in aid received so far. Governments and organizations that offered help (12) that, however.
On (13) Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14) . The leaders discussed and (15) the idea of (16) owed by affected nations. But the leaders did not say they would do so. Some said that (17) to survivors would be more helpful.
Representatives of (18) countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19) for the Indian Ocean and the (20) .
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问答题 简答题

简述写实派散文的特征。
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