小明同学的家坐落在绿树环抱、翠竹簇拥的山岔湖畔.清晨,朝阳初现,叶下露珠晶莹剔透,院前湖面波光粼粼,屋上炊烟随风飘荡,好一幅社会主义新农村美景.下列对此景的物理学解释正确的是( )
A:绿树翠竹有蒸腾作用,但不能调节房舍的气温
B:“炊烟随风飘荡”是分子不停地做无规则运动的结果
C:露是水蒸气汽化而成的
D:湖水因比热容大,有“吸热”功能,炎夏时节能降低周边地区的气温
—_________ . Do more practice and you will succeed.
看图读一读,判断句子正误。
Ann: Look at the animals. I like pandas. They're fat. They're cute. They're black and white. They like bamboos(竹子). What do you like, Ben?
Ben: I like elephants. They're grey. They're big and strong. They like grass.
Ann: Do you like lions, Ben?
Ben: N0. I don't. They're fierce(凶猛的). They're brown. They like meat. They eat small animals.
如图,AB为⊙O的直径,P是BA延长线上一点,PC切⊙O于点C,CG是⊙O的弦,CG⊥AB,垂足为D.