根据如图所示中提供的信息,在微波、红外线、可见光、紫外线四类电磁波中,频率最高的是
A.紫外线
B.微波
C.红外线
D.可见光
答案:A
读图回答:
(1)海洋: ①______________
(2)支流: ②______________ ③______________
(3)城市: ④____________ ⑤_____________ ⑥_____________ ⑦_____________
(4)水电站: ⑧______________ ⑨______________ ⑩______________
(5)黄河上、中、下游分段处名称:_______________ ______________
(6)下列地点所在省(区)名称: ④__________________ ⑦_______________________
We were all ________ favor of this plan after we discussed for about two hours.
A.at
B.in
C.to
D.on