A:匀速上升
B:匀加速上升
C:做加速度逐渐增大的加速运动
D:做加速度逐渐减小的加速运动
The mother with her little son in my home that rainy night.
① ____ A.birth B.nurse C.hamburger
② ____ A.her B.hurt C.teacher
③ ____ A.read B.number C.girl
某气体能使紫色石蕊试液变红,能使酸性高锰酸钾溶液褪色,若通入溴水,可使溶液变浑浊.该气体是( )