题目

Men are spending more and more time in the kitchen encouraged by celebrity (名人) chefs like Gordon Ramsay and Jamie Oliver，according to a report from Oxford University. The effect of the celebrity role models，who have given cooking a more manly picture，has combined with a more general drive towards sexual equality and men now spend more than twice the amount of time preparing meals than they did in 1961. According to the research by Prof.Jonatahn Gershuny，who runs the Centre for Time Research at Oxford，men now spend more than half an hour a day cooking，up from just 12 minut下面是某同学对一些事例的估计，其中接近实际的是（ ）A．一枚鸡蛋的质量约为600gB．一位普通中学生的质量约为60kgC．人行过街天桥的高度约为25mD．物理课本的长度约为2.6m