问题
单项选择题
单柱垂直开启式隔离开关在分闸状态下，动静触头间的最小电气距离不应( )配电装置的最小安全净距B值。
A．大于
B．小于
C．等于
D．不小于
答案
参考答案：B
解析：[知识点] 高压隔离开关的选择
搜题请搜索小程序“爱下问搜题”
单柱垂直开启式隔离开关在分闸状态下，动静触头间的最小电气距离不应( )配电装置的最小安全净距B值。
A．大于
B．小于
C．等于
D．不小于
参考答案：B
解析：[知识点] 高压隔离开关的选择
Several years ago, a well- known writer and editor Norman Cousins became very ill. His body ached and he felt constantly tired. It was difficult for him to even 1 around. His doctors told him that he would lose the ability to move and eventually 2 from the disease. He was told he had only a 1 in 60 3 of survival. 4 the diagnosis( 诊断) , Cousins was determined to overcome the disease and survive. He had always been interested in 5 and had read a book, which discussed the idea of how body chemistry and health can be damaged by emotional stress and negative( 消极的) 6 . The book made Cousins think about the possible 7 _ of positive attitudes and emotions. He thought, “Is it possible that love, hope, faith, laughter, confidence, and the will to live have positive treatment value?” He decided to focused all his 8 on positive emotions as a way to treat some of the symptoms of his disease. In addition to his traditional medical treatment, he tried to put himself in situations that would bring about positive emotions. “Laugh therapy” became part of his treatment. He 9 time each day for watching comedy films, reading humorous books, and doing other activities that would draw out positive emotions. Within eight days of starting his “Laugh therapy” program his pain began to 10 and he was able to sleep more easily. He was able to return to work in a few months’ time and actually achieved complete recovery after a few years. 小题1:1.
|