单项选择题

The finds of Geoffrey Marcy are frightening in that______.

A．it's the first time that astronomers have discovered such space entity
B．it substantially implies some kind of subversion to our present realization
C．it is an entire negation of the present astronomic research
D．they discovered the first extra-solar planet in astronomic study
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单项选择题
What is NOT the finding of searchers in these years
A．A solar system with a usual planet and an unusually huge one.
B．Gassy extra-solar planet careering about its star in short distance.
C．Huge planet orbiting in peculiar track with great gravity.
D．Solar system and Planet Earth are peculiar cosmic balls.
单项选择题
What do the remarks of Tremaine mean at the end of the passage
A．The overturn of the present study fruit may betoken new breakthroughs.
B．If we want to achieve something original, we must throw away the old.
C．The fruits available in each field couldn't hold water all the way.
D．It is always exciting experience to discard the old and obtain the new.
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