题目内容

The best title for the text could be______.

A. The World Must Prepare for Pandemic Influenza
B. Similar Episodes of Initial Outbreak Are Always Evasive to Laymen
C. The Government Should Take Lead in the Prevention of Pandemic Influenza
D. The World Health Organization Must Authorize the Relevant Rescue System as Is Discussed in the Text

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According to the text, which of the followings is not readily made______.

A. publications of new research with respect to the supply of the interference from outside
B. construction of an adequate system Of surveillance of early influenza cases
C. availability of anti-viral drugs and any vaccine in underdeveloped nations
D. contracts between various nations concerning quarantine and containment

Now, (4)___ bombs exploding in Baghdad, a sudden increase in wartime (5)_ for online news has become a central test of the (6)_ of high-speed Internet connections. It is also a good (7)_ both to attract users to online media (8)_ and to persuade them to pay for the material they find there, (9)_ the value of the Cable News Network persuaded millions to (10)_ to cable during the last war in Iraq.
(11)_ by a steady rise over the last 18 months in the number of people with high-speed Internet (12)_, now at more than 70 million in the United States, the Web sites of many of the major news organizations have (13)_ assembled a novel collage(拼贴) of (14)_ video, audio reports, photography collections, animated weaponry (15)_, interactive maps and other new digital reportage.
These Internet services are (16)_ on the remarkable abundance of sounds and images (17)_ from video cameras (18)_ on Baghdad and journalists traveling with troops. And they have found a (19)_ audience of American office workers (20)___ their computers during the early combat.

A. notified
B. publicized
C. followed
D. pursued

跨品种价差套利只能在同一交易所进行交易。()

A. 正确
B. 错误

证券A和B组成的证券组合P中，A、B完全正相关时，σP=XAσA-(1-XA)σB。()

A. 正确
B. 错误