单项选择题

Advancing technology could possibly make us __________.

A．decisive
B．powerless
C．hesitant
D．mysterious
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单项选择题
According to the passage, pessimists believe that __________.
A．the future of the world will be better and better
B．technological advances will destroy the human race at last
C．human technological advances are useless in people's life
D．there is no need to develop technology
单项选择题
The more chemicals we send into the air, the less land we will possibly have because __________.
A．chemicals will wash away fields
B．water levels will go up
C．more and more land will be covered by ice
D．none of the above
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