一、这个习题稳妥吗人教版新教材七年级下册第141页7题,“某工厂前年有工人280人,去年经过结构改革减员40人,全厂利润至少增加100万元,人均创利至少增加6000元,前年的利润是多少?”与其配套的权威性《教师教学用书》在253页给出了答案:设前年全厂的利 I. This is a safe and accurate exercise for the new teaching materials of Grade 7 of the seventh grade of the textbook. “A certain factory had 280 workers in the previous year. After last year, 40 people were cut through structural reforms. The profit of the whole plant increased by at least 1 million yuan, and the profit per capita was at least How much is the profit of the previous year? 6,000 yuan. “The authoritative ”Teacher’s Guide to Teaching Books" gives the answer on page 253.