金刚石结构中,存在X光反射消光现象的衍射面指数为( )
A. (341)
B. (201)
C. (111)
D. (204)
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能带理论解释固体导电的基本观点为( )
A. 满带中的电子不导电
B. 不满带中的电子对导电有贡献
C. 空带不导电
D. 价带不导电
People who have inherited a low rate will gain weight.
A. cardiac
B. respiratory
C. secretory
D. metabolic
________is the color body or substance that carries genetic features from parents to children.
A. Centrosome
B. Ribosome
Chromosome
D. Chromatin
Which ONE does NOT normally collocate with “symptom”?
A. alleviate
B. relieve
C. develop
D. diffuse