单项选择题

A．Some sea creatures developed backbones.
B．The first giant squid was captured.
C．Some sea creatures shed their shells.
D．Sea life became more intelligent.
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单项选择题
It can be inferred from the passage that, compared to conventional X-ray techniques, computed tomography is more _________.
A．compact
B．rapid
C．economical
D．informative
单项选择题
A．Their behaviours are becoming more similar to each other.B．The world is growing smaller.C．We are not longer interested in each other.D．Englishman, Frenchman and German are becoming different kinds of animals.
A．Their behaviours are becoming more similar to each other.
B．The world is growing smaller.
C．We are not longer interested in each other.
D．Englishman, Frenchman and German are becoming different kinds of animals.
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