学完《羚羊木雕》后，教师为了帮助学生更好地理解“文章线索”这一要素，带领学生对学过的文章中的文章线索进行归纳总结，以下总结正确的是（）。

教师要适应时代发展需要，拓宽知识视野，更新知识结构，不断提高专业素养和教育教学水平，就必须(    ) 。

社会主义初级阶段是指

春化作用在低温下通过逐步抑制（ ）核心基因的表达，促进冬季一年生拟南芥开花。

十二指肠球部溃疡的治疗最主要的是

下列音乐家中，创作了钢琴曲《致爱丽丝》的是（ ）。

近日，某集团高层领导研究了发展方向问题。
王总经理认为：既要发展纳米技术，也要发展生物医药技术；
赵副总经理认为：只有发展智能技术，才能发展生物医药技术；
李副总经理认为：如果发展纳米技术和生物医药技术，那么也要发展智能技术。
最后经过董事会研究，只有其中一位的意见被采纳。根据以上陈述，以下哪项符合董事会的研究决定？

请阅读 Passage l,完成第 21~25小题。

Passage 1

"THE SERVANT"(1963) is one of thosefilms that it is impossible to forget. The servant exploits his master'sweaknesses until he turns the tables: the story ends with the a cringing masterministering to a lordly servant. It is hard to watch it today without thinkingof another awkward  rela-tionship-the onebetween business folk and their smartphones.

Smart devices are sometimes empowering.They put a world of information at our fingertips. But for most people theservant has become the master. Not long ago only doctors were on call all thetime. Now everybody is. Bosses think nothing of invading their employees '  free time. Work invades the home far morethan domestic chores invade the office.

Hyperconnectivity exaggerates the declineof certainty and the general cult of flexibility. Smartphones make it easierfor managers to change their minds at the last moment. Employees find it ever harderto distinguish between "on-time" and "off-time"—and indeed between realwork and makework. None of this is good for businesspeople ' s marriages ormental health. It may be bad for business, too. When bosses change their mindsat the last minute, it is hard to plan for the future.

How can we reap the benefits ofconnectivity without becoming its slaves? One solution is digital dieting.Banning browsing before breakfast can reintroduce a small amount ofcivilization. Banning texting at weekends or, say, on Thursdays, can reallyshow the iPhone who is boss.

The problem with this approach is that itworks only if you live on a desert island or at the bottom of a lake. LesliePerlow of Harvard Business School argues that for most people the only way to breakthe 24/7 habit is to act collectively rather than individually. One of theworld's most hardworking organisations, the Boston Consulting Group, introducedrules about when people were expected to be offline, and encouraged them towork together to make this possible. Eventually it forced people to work moreproductively while reducing burnout.

MsPerlow' s advice should be taken seriously. The problem of hyperconnectivitywill only get worse, as smartphones become smarter and young digital natives takeover the workforce. But ultimately it is up to companies to outsmart thesmartphones by insisting that everyone turn them off from time to time.

Smart devices have become the master mainly because______

有一种民族舞蹈头、肩、腰、臂、肘、膝、脚都有动作，传神的眼神更具有代表性。该民族聚居地被誉为“歌舞之乡”,这是（     ）

苷元上的氮与麦芽糖端基羟基脱水形成的苷是（ ）

某男，56岁。喘咳数年，证属肺肾两虚。治疗宜选用的药物是（ ）