基站的勘测设计中对馈线弯曲半径要求是:7/8″馈管不小于();5/4″馈管不小于()。
参考答案:250mm;380mm
柴胡、葛根、升麻都具有的功效是()
A.透发麻疹
B.生津止渴
C.和解退热
D.升举阳气
E.疏肝解郁
---The 2010 World Expo (世博会) which will last 184 days will be held in Shanghai on May 1st.
--- ________ exciting news! We shall try our best to support it.
A.How
B.What
C.How an
D.What an