A:夏天,把湿衣服晾干
B:冬天,河面上结冰
C:铁块化成铁水
D:刚从冰箱中取出的冰棍冒“白气”
____
下列说法中正确的是( )
“种豆南山下,草盛豆苗稀”,说明田间杂草与农作物之间在获取养分、阳光等方面存在( )
18÷____ =____:20=9/____=0.75=____%.
Oh, Mike. It's raining outside. You'd better your raincoat.