If there were no family planning, China, a country of the largest population, would have its population tens of millions greater.
=Without the family planning
policy / If it were not for the family planning policy, China, a country with the largest population, would have had.這句是和現(xiàn)在情況相反的吧？用would加動(dòng)詞原形
計(jì)劃生育是過(guò)去實(shí)施的，和過(guò)去相反？？？從現(xiàn)實(shí)來(lái)看 計(jì)劃生育政策實(shí)施多年 屬于過(guò)去發(fā)生的動(dòng)作 應(yīng)該是對(duì)過(guò)去的虛擬

現(xiàn)在政策不是放寬了么與過(guò)去事實(shí)相反\x09had + 過(guò)去分詞？