给下面带下划线的字注音。
东南坼 ____ 乾坤 ____ 戎马 ____ 凭轩 ____ 涕泗 ____
某厂2011年用于购买原材料的费用2350000元,实数2350000用科学记数法表示为( )
Kate isn't happy because she lost her pet. Let's go to cheer her up.
乘法公式的探究及应用.
This cartoon can make you laugh and cry at _______ same time.
设p:x<3,q:-1<x<3,则p是q成立的( )