In the energy range Ev to Ec there are no states.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- 中国大学MOOC: In the energy range Ev to Ec there are no states.
- There are _____ states in the United States.
- （ ）为摆脱共价键束缚的电子。 A: 导带电子 B: 价带电子 C: Ec -Ev D: Ev -Ec
- （ ）对应共价键的成键电子。 A: 导带电子 B: 价带电子 C: Ec -Ev D: Ev -Ec
- There are 50 stars on the national flag of the United States. They represent today's 50 States of the United States.