前向功率调整的范围是()
A、±6dB
B、±12dB
C、±24dB
D、±32dB
参考答案:A
地方性斑疹伤寒的传染源包括
A.家鼠
B.病人
C.牛
D.猪
E.马
根据句意及首字母完成句子.
1. Did you see the p_ on the wall?
2. He was c____ by a former champion.
3. He loves animals and wants to be a v____ when he grows up.
4. Did you see the a____ on the wall?
5. --I'd like to help h____ people
--You could give out food at a food bank.