单项选择题

The country has ______ swiftly into open conflict with its neighbours.

A．undergone
B．plunged
C．tightened
D．confronted
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单项选择题
People had bought these houses under the ______ that their value would just keep on rising.
A．imitation
B．illusion
C．incidence
D．implement
单项选择题
It can be inferred from the passage that ______.
A．we can ignore the moral aspect of the biotech age
B．artificial intelligence can not be as good as human brain
C．plotting the brain is much more significant than mapping genes
D．in the future a human being does not necessarily rely on a brain
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