期货市场可对冲现货市场风险的原理是（  ）。

教育的个体社会化功能，不包括

Passage 1    The World Cup has become the most streamed live sporting event the US has ever seen, as Americans tuned in to this year's tournament on their smart phones, tablets and computers in record numbers.    A of US interest in football this year has also led to record television audiences for broadcasts on ESPN and Uni-vision, the Spanish-language network. The US team's loss on Tuesday to Belgium averaged a 9.6 0vernight rating on ESPN, according to Nielsen, the highest for any World Cup match the network has broadcast.    But a 50 per cent surge in live streaming compared with the previous record, set during the 2012 London Olympics, shows that the sport's appeal has grown particularly among younger, more digital, fans. Young people are energetic and fond of sporting. The World Cup is a great tournament of football, so they must be attractive. On the other hand, now the electronic devices are developing rapidly, more people have smart phones, tablets and computers. Then to watch the World Cup becomes much easier.US viewers have so far watched nearly 30m hours of streaming video on ESPN's World Cup website and apps, the network said, beating the previous record of 20.4m viewing hours during NBC's 2012 0lympics coverage. Univision has streamed l.5m hours since the start of the tournament.    Last week's USA vs. Germany match drew a record 1.7m streaming viewers to ESPN at its peak, with streaming on Univision peaking at 747,000. Tuesday's USA vs. Belgium match peaked at 1.5m streams on ESPN and 680,000 On Univision.    In comparison, live streaming of January's Super Bowl peaked at 1.1m.    While the elimination of the US team leaves a question mark over US fans' interest in the rest of the tournament, Univision's audience for non-US games has been robust.    Univision said its broadcast on Sunday of the Mexico vs. Netherlands match was the most-watched programme, of any kind, in US Spanish-language TV history, with an average 10.4m viewers. Its audiences have been the largest in cities with large Spanish-speaking populations, such as Miami, Los Angeles, Houston and New York.    With most matches being shown during business hours, Americans are increasingly turning to their devices, such as smart phones, tablets and computers to keep up with the tournament. Fifa, football's governing body, said US fans make up 20 percent of its global digital audience and are spending more time on its website and apps than fans in Brazil, Germany, England and France combined.    With different kind of electronic devices to watch World Cup, the number of audience becomes larger. The flood of demand caused some problems with ESPN's feeds, leading frustrated viewers to take to Twitter to complain about the match cutting out. That had also happened during the USA vs. Germany game.
Which of the following statements is Not true?

六年级学生李某经常旷课，班主任多番劝阻都收效甚微。对于李某的情况，下列学校的做法不正确的是（     ）

实行统一进货、统一配送、统一管理的药品零售连锁企业经以下哪个部门批准，可以从事第二类精神药品零售业务（      ）

属于长效、选择性COX-2抑制药的是（   ）

某女，49岁。1年来月经紊乱，心烦易怒，懊恼不安，坐卧不宁，哭笑无常，夜卧多梦易惊，口干渴饮，小便黄，大便干燥；舌红苔薄黄，脉弦细数。治疗宜选用的基础方剂是（   ）

《中华人民共和国招标投标法实施条例》规定，招标文件要求中标人提交履约保证金的，中标人应按照招标文件的要求提交。履约保证金不得超过中标合同金额的（  ）。

甲类传染病要求发现后多久上报（）

根据《信托法》，信托成立的前提是（  ）。

相对数是表示