远期交易本质上是现货交易。一般通过场外交易市场完成。（  ）

男，62岁。双下肢乏力半年，右侧明显。近2个月来步态不稳，右手不能系纽扣。无外伤史，无发热。查体：颈背部无明显压痛，两上肢前臂、手及上臂尺侧皮肤感觉减退，躯干部及双下肢感觉减退，四肢肌力减弱，左上肢肌力3级，右上肢及双下肢肌力4级，肌张力增高，肱二、三头肌反射亢进，双侧膝腱反射亢进，右侧髌阵挛阳性，双侧Babinski征阳性。该患者最可能的诊断是(    )

对世界本源的认识不同，可以区分出()

临时消防车道与在建工程、临时用房、可燃材料堆场及其加工场的距离，不宜小于(   ) m,  且不宜大于(   ) m。

LM曲线向右下方移动是因为（　　）。

新生儿颌骨骨髓炎主要发生在

主要用于调节软膏稠度的基质是（ ）

运用现代系统论方法研究教学问题，提出教学过程最优化理论的教育家是（）

服用阿伦磷酸钠治疗绝经期女性骨质疏松症，需先纠正钙和矿物质代谢紊乱，要补充的维生素是（    ）

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.

Digital dieting refers to all of the following EXCEPT_____.

货币市场作为中央银行执行货币政策的重要载体，也是各类金融机构调节资金头寸、管理流动性和进行投资的主要场所，其中，在货币市场中发挥主导作用的是（  ）。