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问题 单项选择题

电力网切除故障时间主要由系统稳定性、发电厂厂用电或重要用户供电电压及电力网保护配合的要求等许多因素决定。按实际情况下允许切除故障最长时间考虑，500kV线路远端故障为( )。

A．0.08s；
B．0.1s；
C．0.12s；
D．0.15s。

答案

参考答案：B

填空题


This autumn term, spring term, or academic year program offers advanced students an opportunity to improve their spoken arid written Chinese, and to be familiar with a range of people and organizations that are helping to shape China’s relationship with the United States and the world. All students who take intermediate or advanced Chinese language may take a choice to participate in the Professional Development Program that includes guest lectures by Chinese and foreign professionals on areas such as politics, foreign affairs, economics, trade, media, art and culture. This program is supplemented by field trips and short journeys in and around Beijing.
Housing and meals: Students live in the foreign student dormitories and take meals in the dormitory dining hall or local restaurants.
Requirements: Two years of college-level Chinese and one Chinese studies courser graduate students accepted.
Program Fee: 2005 Autumn Term: ＄6995; 2006 Spring Term: ＄7995. Fees include tuition, housing and all meals, cultural activities, local journeys and field trips, insurance, and the International Student Identity Card.

How many requirements are there for one who wants to be accepted to the program

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单项选择题

邓 * * 同志制定方针政策和做出决断的出发点和归宿是

A．是否能够解放生产力、发展生产力

B．能否巩固社会主义制度

C．人民拥护不拥护、人民赞成不赞成、人民高兴不高兴、人民答应不答应

D．能否增强社会主义国家的综合国力
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