将骨骼肌细胞膜的电变化和肌细胞内的收缩过程耦联起来的关键部位是(     )

中央银行在金融市场上卖出或买入有价证券，吞吐基础货币，以改变商业银行等金融机构的可用资金，进而影响货币供给量和利率，实现货币政策目标的措施是指（  ）。

如图.在一带电量为Q的导体球外，同心地包有一各向同性均匀电介质球壳，其相对电容率为εr.壳外是真空，则在壳外P点处（OP=r）的场强和电位移的大小分别为(  )。

下列城镇道路路基施工质量验收项目中，属于主控项目的是（     ）。

雄激素可降低的体内物质是

治疗顿咳恢复期脾胃气虚证，应首选

几个学生将苗老师的自行车吊到了校园广场的树上，苗老师知道后非常生气，责罚他们做了一节课的蛙跳。苗老师的做法()。

忌火煅的药物是

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

治疗指数窄，使用过程中应检测国标标准比值（INR），并将其稳定在控制在2.0-3.0的药品是（ ）

患者，男，35岁。风湿性心脏病伴心房颤动6年。今天下午患者突然右侧肢体瘫痪，失语，偏身感觉障碍，查脑脊液正常。考虑该患者最可能发生的情况是（）