题目

Is any possibility the majority of the labour force will work at home in the next few decades? A . it; that B . there; whether C . it; whether D . there; that 答案：D用四舍五入法，按要求对下列各数取近似数  ①0.28137精确到千分位___________  ②56.7精确到个位___________  ③1.5072精确到0.01___________  ④0.0734保留两个有效数字_______________  ⑤43275保留3个有效数字________________