单项选择题

Perhaps all societies (are significantly more advanced) than our own have achieved an effective personal immortality and lose the motivation for interstellar gallivanting, which (may), (for all we know), (be) a typical urge only of adolescent civilizations.

A．are significantly more advanced
B．may
C．for all we know
D．be

<上一题目录下一题>

热门试题

单项选择题

I suggest transforming our social system from a (bureaucratically management industrialism) in which maximal production and consumption are ends in (themselves) (in the Soviet Union as well as in the capitalist countries) into a humanist industrialism (in which) man and full development of his potentialities those of love and of reason (are the aims) of all social arrangements.

A．bureaucratically management industrialism
B．themselves
C．in which
D．are the aims

单项选择题

But (as) a historian. Graves should be aware that James Clerk Maxwell’s brilliant insight about electromagnetism--the guess that visible light is only one small slice of the spectrum of (electromagnetic) energy, a guess that forms the basis (for) electronics technology—(is) an intuitive leap into the unknown.

A．as
B．electromagnetic
C．for
D．is

相关试题