题目

．用浓硫酸配制一定物质的量浓度的硫酸溶液，下列操作会造成所配溶液浓度偏高的是（    ） A．溶解后的溶液未冷却至室温就转移入容量瓶中 B．摇匀后，液面低于刻度线，再加蒸馏水至液面最低点恰好与刻度线相平 C．洗涤烧杯和玻璃棒的溶液未转移入容量瓶中 D．定容时，眼睛仰视刻度线 答案：AThere’s no one reason why women return to school. Going back to school provides private and public benefits. College graduates, generally enjoy higher salaries,【1】(employ) more consistently, and work in nicer conditions. College-educated people vote more, give more to charity, and rely【2】(little) on government support.Making the switch from【3】(support) to supporting oneself can be a challenge,【4】often a necessary one. “Financial【5】(dependent) for women is key,” says Nancy Schlossberg, a professor at University of Maryland. “I think【6】important for women to make some direct achievement, because chances are that women will live alone in later life, either divorced【7】never married.”To Schlossberg, education is critical in the long run. She says, “You are going to do much better than before【8】you have a good education; you are going to be happier than before on condition that you have【9】education that enables you to do what you have to do in life. The question is【10】you are ready at this time to go for it.