中国大学MOOC: A strong scientific title is descriptive, brief, specific, and accurate. It also useskey words that readers will search for. The title with the √ before it is considered to be the better one. Decide whether the following choice is the correct one. 4. A. An Experimental Observation of a Pair of Spin-Polarized Fermi Arc Surface States on the Surface of the Dirac Semimetal Na3Bi at Its Native Chemical Potential√ B. Observation of Fermi Arc Surface States in a Topological Metal
中国大学MOOC: A strong scientific title is descriptive, brief, specific, and accurate. It also useskey words that readers will search for. The title with the √ before it is considered to be the better one. Decide whether the following choice is the correct one. 4. A. An Experimental Observation of a Pair of Spin-Polarized Fermi Arc Surface States on the Surface of the Dirac Semimetal Na3Bi at Its Native Chemical Potential√ B. Observation of Fermi Arc Surface States in a Topological Metal
Paul Dirac does not like Oppenheimer because of his superiority.
Paul Dirac does not like Oppenheimer because of his superiority.
下面有关金属中自由电子说法正确的是（ ） 未知类型：{'options': ['自由电子为Fermi子，服从Fermi-Dirac统计', ' 自由电子为Bose子，服从Bose-Einstein统计', ' 只有费米面附近的电子对固体热容有贡献', ' 在低温时，自由电子对固体热容的贡献与[img=16x18]17e43d09249c8e6.jpg[/img]成正比'], 'type': 102}
下面有关金属中自由电子说法正确的是（ ） 未知类型：{'options': ['自由电子为Fermi子，服从Fermi-Dirac统计', ' 自由电子为Bose子，服从Bose-Einstein统计', ' 只有费米面附近的电子对固体热容有贡献', ' 在低温时，自由电子对固体热容的贡献与[img=16x18]17e43d09249c8e6.jpg[/img]成正比'], 'type': 102}
Dirac considered that people can do well both in physics and poetry.
Dirac considered that people can do well both in physics and poetry.
His laboratory ______ and different from Fermi’s laboratory in Rome.
His laboratory ______ and different from Fermi’s laboratory in Rome.
Dirac seldom spoke and when he did, his words were extraordinarily accurate and clear-cut.
Dirac seldom spoke and when he did, his words were extraordinarily accurate and clear-cut.
为了使半导体材料在外界作用下实现粒子数反转,必须对半导体进行重掺杂,使n型的Fermi能级处于导带中,p型的Fermi能级处于价带中。(<br/>)
为了使半导体材料在外界作用下实现粒子数反转,必须对半导体进行重掺杂,使n型的Fermi能级处于导带中,p型的Fermi能级处于价带中。(<br/>)
量子自由电子学说认为自由电子的行为服从（ ） A: Fermi-Dirac统计规律 B: Maxwell-Boltzmann统计规律 C: Bose-Einstein统计规律 D: 无规律
量子自由电子学说认为自由电子的行为服从（ ） A: Fermi-Dirac统计规律 B: Maxwell-Boltzmann统计规律 C: Bose-Einstein统计规律 D: 无规律
对于本征半导体,Fermi能级近似地位于导带底和价带顶之间的中点。(<br/>)
对于本征半导体,Fermi能级近似地位于导带底和价带顶之间的中点。(<br/>)
1. 首先提出微观粒子的运动满足测不准原理的科学家是------------ ( ) A: Schrodinger B: Dirac C: Heisenberg D: Max Born
1. 首先提出微观粒子的运动满足测不准原理的科学家是------------ ( ) A: Schrodinger B: Dirac C: Heisenberg D: Max Born