下列物质中酸性最强的是:()
A.HClO
B.HClO2
C.HClO4
D.HClO3
参考答案:C
解析:提示:根据鲍林规则,不与氢结合的氧原子数越多,酸性越强。
As our eating habits are changing,choosing what is no longer as easy as it once was.
A.eat
B.eaten
C.to eat
D.to be eating
结账前发现账簿记录错误而记账凭证没有错误,应用( )更正。
A.划线更正法
B.红字更正法
C.补充登记法
D.蓝字更正法