在专业炉窑中,如铝电解槽、镁电解槽、闪速炉、炼铜反射炉、鼓风炉、锌精馏路等属于()炉窑。
A.有色金属工业
B.冶金
C.化工
D.建材工业
参考答案:A
若下列四幅地图图幅面积相同,那么比例尺最小的是( )
A.亚洲地图
B.中国地图
C.云南省地图
D.昆明市地图
My father enjoys ____ very much. He often practises _____ in summer.
A.to swim; swimming
B.swimming; swimming
C.to swim; to swim
D.swimming; to swim