Awarded the Nobel Prize for physics in 1918, German physicist Max Planck is best remembered as the originator of the quantum theory. His work helped usher in a new era in theoretical physics and revolutionized the scientific community’s understanding of atomic and subatomic processes. Planck introduced an idea that led to the quantum theory, which became the foundation of twentieth century physics. In December 1900, Planck worked out an equation that described the distribution of radiation accurately over the range of low to high frequencies. He had developed a theory which depended on a model of matter that seemed very strange at the time. The model required the emission of electromagnetic radiation in small chunks or particles. These particles were later called quantums. The energy associated with each quantum is measured by multiplying the freque A. quantums B. atoms C. electrons D. valences [单选题]电路的状态有( )。
A.两种 B.三种 C.四种 [判断题]( )高速铁路区段,人工办理时,开放信号机的时机在高速铁路《站细》中规定。
A.正确 B.错误 [单项选择]对技术开发的课题选择与成果评价时,不仅要考虑对到当前本企业发展的作用,还要考虑到今后对本企业较长时间的影响。这一技术评价的原则是指()
A. 当前和长远需要相结合 B. 局部与整体利益相结合 C. 技术先进性与生产可行性相结合 D. 技术先进性与经济合理性相结合 [单项选择]An old song says that "love makes the world go around." If you (67) Americans on Valentine’s Day, you can believe it. The whole country (68) out with little red hearts. Love- (69) people give cards, flowers and candy to their sweethearts. You might call it an (70) celebration of love.
The American (71) of love begins with dating. Young people date in several ways. At first they might have (72) dates with several boys and girls together. Later, they start going on (73) dates--just one boy and one girl. When two couples go out together, we call it (74) dating. A friend might even (75) a blind date for you with someone you don’t know. That doesn’t mean you keep your (76) closed the whole evening! You just don’t know who your partner will be (77) the time for the date. Americans view dating (78) from people in other cultures. American young A. languish B. bloom C. fade D. fail [多项选择]未来货权质押是指青岛农商银行经过控制进口货物物权单据,引入监管方办理进口货物的()、()、()和(),到与进口商完成实际货物质押的业务过程。()
A. 提取 B. 通关 C. 转运 D. 仓储 E. 入库 [单选题]管片拼装螺栓质量及拧紧度必须符合( )要求。
A.设计 B.特殊 C.监理 D.甲方 [单选题]绝缘材料受交流电压作用时的介质损耗与直流电压作用时相比()。
A.大 B.小 C.相等 D.无关 E.略 [单项选择]《消防法》规定,因特殊情况需要使用明火作业的,应当按照规定事先办理()。
A. 审批手续 B. 备案手续 C. 许可手续 D. 保险手续 [判断题]检查高开配电开关情况,各输出支路正常电压为DC-42至DC-58V。
A.正确 B.错误 我来回答: 提交
|