题目

In China, very few children make pocket money,_______, in western countries, most kids make pocket money bythemselves. They make money in many different_______. When kids are very young, their parents help them sell the fruitsof their own trees to neighbours. Kids may also help_______do housework to make money at home. When they_______sixteen, they can make money by sending newspapers or by working in fast food restaurants,_______during the summerholidays.There are many_______of making pocket money by kids themselves. First of all, they learn the_______of money byworking hard so that they will常温下MOH和ROH两种一元碱的溶液分别加水稀释时，pH变化如图所示。下列叙述中不正确的是A．ROH是一种强碱 B．等物质的量浓度的MOH与盐酸反应，所得溶液呈中性，则MOH的体积大于盐酸的体积 C．在x点，c（M+）＝c（R+） D．稀释前，c（ROH）＝10 c（MOH）