题目内容：
硅材料本身是没有电活性的，可以通过掺杂杂质原子降低电阻率。
A.正确
B.错误
参考答案：
选择题：硅材料本身是没有电活性的，可以通过掺杂杂质原子降低电阻率。
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
- 查看权限：VIP
A 2010 survey published in《Dermatologic Surgery》revealed tha
A 2010 survey published in《Dermatologic Surgery》revealed that both men and women deemed tanned individuals much more att
Presenting as mean ± standard deviation, the results were an
Presenting as mean ± standard deviation, the results were analyzed with SPSS 23.这是一个关于生物医学英语写作的相关问题，下面我们来看
Patients with ovarian cancer experience a high rate of anemi
Patients with ovarian cancer experience a high rate of anemia throughout their treatment course, with rates in different
The rates and reasons for losing to follow-up were checked.
The rates and reasons for losing to follow-up were checked.这是一个关于生物医学英语写作的相关问题，下面我们来看
The infection rate in the vaccine group increased to 7.8%, a
The infection rate in the vaccine group increased to 7.8%, and was not significantly different from 13.2% in the control