为了提高小区覆盖的RSRP，采用RSpower boosting技术，最高可以提高几个dB（）
A.1dB
B.3dB
C.6dB
D.9dB
参考答案：C
看课程表，填写单词。
1. It's 2: 25. It's time for ______________ class.
2. It's eight twenty. It's time for ______________ class.
3. It's 10: 55. It's time for ______________ class.
4. It's nine ten. It's time for ______________ class.
5. It's 10: 05. It's time for ______________ class.
以下哪些是我国刑法所界定的毒品（）
A、鸦片
B、海洛因
C、冰毒
