读下图,判断下面说法正确的是
A:a河水力资源丰富
B:b河航运发达
C:a河流域是所在国主要农业区
D:b河流经著名的秋明油田
GPS技术给测绘界带来了一场革命,下列说法不正确的是( )
of us has to have our temperature taken when we get in school every morning.