单项选择题

The World Conference of Science held in Budapest in July ______.

A．had drawn the attention of leaders to the importance of science
B．hoped to make leaders attach more importance to science and technology
C．would further make the political activities more beneficial to people
D．had pushed both the developed and developing countries to go forward

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单项选择题

The author's statement about HSN1 virus shows that ______.

A．people should be constantly on guard against its potential threat
B．it has caused many people in Asia to die in a moment
C．the doctors are much easier to contract bird flu than other people
D．one will certainly die when he is shown to be H5Nl-positivc

单项选择题

How do WHO experts react to this special case in Vietnam

A．They have confirmed that the sisters in the case were infected from poultry.
B．They link all the members in the family to contact with sick birds.
C．They are quite doubtful of the possibility of human-to-human transmission.
D．They feel astonished because it's the first time they found such a case.