某大型黄铜黄铁矿存在自燃倾向。2023年6月该矿一采场回采结束进行采空区废石充填时残矿自燃，产生大量刺激性浓烟，弥漫整个水平回风巷。关于处置该矿残矿自燃的措施，最佳的是（   ）。

Passage 1    Results showed that at least a tenth of the Harvard first-year undergraduates polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework. An anonymous survey by Harvard's newspaper has revealed a surprising pattern of academic dishonesty among studertts entering the US universities.    The survey by The Harvard Crimson was emailed to the incoming first year undergraduates; 1,600 students responded. Results showed that at least a tenth of the students polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework.    Athletes were apparently the most prone to cheating. 20 percent of students who played a university sport admitted to cheating on an exam compared to 9 percent of students who did not. The survey also revealed that men were not only more likely to cheat but were also more likely to admit to it.    The results, compared to a previous survey done on the class of 2013, suggested that cheating may be becoming more commonplace. Of the outgoing seniors only 7 percent admitted to cheating in an exam and another 7 percent said they had been dishonest on a take-home test. 32 percent of the seniors said they had cheated on homework during their undergraduate years.    The surveys come in the wake of a cheating scandal at the university which saw 120 students investigated for sharing answers on an exam in 2012. One recent graduate stated: "Cheating was commonplace when I was at Harvard, especially with students in their first year or two. I would say as many as 60 per cent of students took notes into some exams. No one really cared the faculty, well some of them at least, seemed to recognize and yet ignore the problem."    In an email to NBC News, Jeff Neal, a Harvard representative, explained that a committee, made up of faculty, staff and students had been established to tackle cheating, which "is a national problem in American education".    He added: "While the vast majority of Harvard and other students do their work honestly, beginning this year Harvard College has implemented a new, more robust strategy of communicating with all students, particularly first-year students, about the importance-and the ways to achieve- academic integrity."    In a rebuff to critics who say university has become little more than an expensive party, 84 per cent of the responding undergraduates fully expected to prioritize their academics over extracurricular activities, sport, employment and their social lives. Not a single student put academics at the bottom of their list. Not content with confining themselves to their degree subject, 59 percent of incoming students expressed a desire to pursue a secondary field of study, and 36 percent hoped to learn a language.
What did the results show according to the first two paragraphs?

大剂量可引起听力损害和肾功能损害的药物是（   ）

根据《证券期货投资者适当性管理办法》，下列不属于普通投资者享有的特别保护的是（  ）。

当堤坝临水坡出现漏洞口多而小，且范围又较大的险情时，宜采用的抢护方法是(　　)。

信息科技风险快速巡查是介于风险评估与风险控制之间的一种监管手段。

药物不良反应

某海洋石油企业准备申请安全生产标准化二级。该企业注册地为甲省丙市，主要生产场所在乙省丁市，按照安全生产标准化分级负责原则，负责该企业标准化定级的部门是（  ）。

下列关于人工流产并发症的叙述，错误的是(   )

关于釉质龋，错误的是

下列各项中，应计算缴纳城镇土地使用税的是（  ）