单项选择题

The opinion of the writer is that ______.

A．there may be other intelligent beings in the universe
B．there are other intelligent beings in the universe
C．people living on the earth are almost certainly the only intelligent beings in the universe
D．people living on the earth are definitely the only intelligent beings in the universe
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单项选择题
We learned from the passage that ______.
A．even in 2030, obstacles still exist in reading and interpreting human thought
B．nowadays people feel angry with the domination of the history by elites
C．by the year 2050, human beings can lead an everlasting life biologically
D．people can only "live in" silicon to get an immortal life
单项选择题
According to this passage, a Soul Catcher will be ______.
A．a new machine on which radical research measures have already made
B．a new invention in order to capture and preserve human thoughts
C．made by British scientists to offer a semblance of immortality
D．made of silicon circuits which can index people's nervous activity
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