在Word文档中，想要选定文档中的一个矩形区域，应在拖动鼠标前按下下列哪个键不放？(    )

根据《疫苗流通和预防接种管理条例》及相关规定，关于非免疫规划疫苗(第二类疫苗)管理的说法，错误的是（   ）

期货品种进入实物交割环节时，提供交割服务和生成标准仓单必经的期货服务机构是（  ）。

下列薄膜包衣材料中，属于胃溶型的是（   ）

枕左前位胎头内旋转动作是使胎头(    )。

进行大规模调查时，常把抽样过程分为几个阶段，每个阶段再进行单纯随机抽样，也可将数种抽样方法综合应用，称为

《清史稿》载：光绪帝“师徒挠败，割地输平，遂引新进小臣，锐志更张，为发奋自强之计。”这里的“友奋自强之计”是指()。

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.
Which of the following is not the measure taken by Harvard University?

煤矿防治水工作应当坚持（   ）的原则，根据不同水文地质条件，落实 “防、堵、疏、排、截”五项综合治理措施。

人体在重复用药时导致对药物的反应性逐渐减弱的是（   ）

提出“一切反动派都是纸老虎”著名论断的是（   ）。