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单项选择题

A．Tears.B．Breast milk.C．Saliva.D．Nervous system tissue.……

Which of the following has been proved to transmit HIV

A．Tears.
B．Breast milk.
C．Saliva.
D．Nervous system tissue.

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单项选择题What happened to Wilt Chamberlain in 1972

A．He lost the final chance to win a championship.
B．He was knocked out during one contest.
C．He broke a bone in the wrist during a match.
D．He was awarded with a $1.5 million house.

单项选择题We can learn from the text that

A．the political circle will offer the help to the high schools.
B．giving a presentation is beneficial to students.
C．teaching methods have to be changed.
D．students are afraid to talk to strangers.

单项选择题From the second paragraph we learn that

A．the objection to euthanasia is diminishing in some countries.
B．physicians and citizens have the same view on euthanasia.
C．technological changes are chiefly responsible for the new law.
D．it takes time to appreciate the significance of laws passed.

单项选择题The passage is mainly talking about __________.

A．the Crown in Britain
B．the appointment of the ministers
C．No. 10 Downing Street
D．things about the Prime Minister in Britain

单项选择题By saying an uphill battle , the author means

A．a tough task.
B．a easy job.
C．an upgrade class.
D．climbing a hill.