多音字组词
都:dōu____、dū____
哄:hǒng____、hōng____、hòng____
着:zhe____、zháo____、zhuò____
藏:cáng____、zàng____
以“黑土地”著称的平原是( )
人体呼出的气体中氧气的含量多于二氧化碳的含量.(判断对错)
—She bought a nice dress.