A:液氯
B:氯水
C:漂白粉
D:碘酒
“绿色奥运”,拒绝兴奋剂.乙基雌烯醇是一种兴奋剂,其化学式为C20H32O,下列关于乙基雌烯醇的说法正确的是( )
Chinese ink painting is usually in black and white.
—Don't worry, I will give you some ____.