无致龋性的甜味剂是（    ）

患儿，8个月。呕吐，腹泻3天，大便15次/d,皮肤弹性极差，无尿，血清钠140 mmol/L。患儿脱水的程度和性质是（  ）

患者，男，38岁。因工作环境长期接触金属铅，引起慢性铅中毒，应给予的解救药是（    ）

在全国人大常委会会议期间，常委会组成人员(       )人以上联名，可以提出对国务院各部，各委员会的质询案。

患者，男，49岁。肝硬化病史5年，今天患者出现烦躁多动，诊断肝性脑病早期，对患者进行健康教育时，嘱其保持大便通畅的目的是（  ）

多址技术是指（）的技术。

关于机电安装工程保修的责任范围，正确的说法是（  ）。

血红蛋白的合成描述正确的是

午睡起床时，小班的李老师发现小朋友常将两只鞋子穿反，就编了首儿歌：“一双小鞋子，套上小脚丫。背对背，脸背脸，就像刚刚吵过架。咦——怎么了？”小朋友听完儿歌纷纷检查了自己的鞋子，“哦，小鞋子穿反了！”下列选项与该案例体现的教师职业道德要求相符的是(      )

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

根据《中华人民共和国证券法》的规定，证券内幕消息的知情人包括持有上市公司（  ）以上股份的股东及其董事、监事、高管。