单项选择题

The scientist's discovery will have a profound influence on mankind.

A．deep
B．moderate
C．negative
D．positive
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单项选择题
During his lifetime he was lucky to accumulate quite a fortune.
A．overtake
B．confront
C．gather
D．demonstrate
单项选择题
Scientists are often fascinated by phenomena that many ordinary people ignore.
A．attracted
B．disturbed
C．horrified
D．satisfied
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