单项选择题

A．Because change happened so quickly.
B．Because people were not interested in it.
C．Because people were too busy with their work.
D．Because change happened so slowly.
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单项选择题
According to the first paragraph, one of the concerns related to international biomedical research is ______.
A．whether the experimented treatments should be compared against local standards
B．whether the experimented treatments are shown to be effective
C．when local communities will be able to carry out their own research projects
D．the prohibitive costs involved
单项选择题
A．Study the map of Quebec Province.B．Find more about Quebec City.C．Brush up on her French.D．Learn more about the local customs.
A．Study the map of Quebec Province.
B．Find more about Quebec City.
C．Brush up on her French.
D．Learn more about the local customs.
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