单项选择题

Humans on Earth today are characterized by______.

A．their existence as free and separate beings
B．their capability of living under favorable conditions
C．their great power and effectiveness
D．their strong desire for living in a close-knit society

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热门试题

单项选择题

According to this passage, some people believe that eventually______.

A．human societies will be much more cooperative
B．man will live in a highly organized world
C．machines will replace man
D．living beings will disappear from Earth

单项选择题

Even most imaginative people have to admit that

A．human societies are as advanced as those on some other planets
B．planets other than Earth are not suitable for life like ours to stay
C．it is difficult to distinguish between organic pa/ts and inorganic parts of the humm, body
D．organisms are more creative than machines