单项选择题

The author points out that the Greeks who studied conic sections ______.

A．invented modern mathematical applications
B．were unaware of the value of their studies
C．worked with electricity
D．were forced to resign themselves to failure

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热门试题

单项选择题

This passage mainly discusses ______.

A．the dual nature of the world in which we humans live
B．the effect of strong emotions
C．emotion and reality'
D．emotions and passions—gifts of the spectator's mind

单项选择题

The passion of love is cited by the author to show how ______.

A．unable we are to control our emotions
B．unreal our practical world is
C．familiar passions are to us
D．our world can be transformed by our feelings