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　　In a production process that is complex and often unpredictable, roles that start out discretely defined may become quite _______.

　　A：confused

　　B：perfunctory

　　C：independent

　　D：overt

　　E：exacting

　　答案：A

　　While the writer was best known for her much-ballyhooed_______, her impact reached far beyond memorable quips.

　　A：A. pensiveness

　　B：B. drollness

　　C：C. stoicism

　　D：D. fastidiousness

　　E：E. congeniality

　　答案：B

　　Though the volume of radioactive waste produced by nuclear power plants is_______, the problem of how to dispose of that waste is not: rather, it is of major importance.

　　A：unmanageable

　　B：troubling

　　C：significant

　　D：small

　　E：deceptive

　　答案：D

　　We often regard natural phenomena like rainfall as mysterious and unpredictable; although for short time spans and particular places they appear so, in fact on a truly global scale, nature has been a model of_______.

　　A：reliability

　　B：diversity

　　C：complexity

　　D：plasticity

　　E：discontinuity

　　答案：A

　　Among the Meakambut people of Papua New Guinea, legends are associated with specific caves in the Sepik region, and the legends are_______: only cave owner can share its secrets.

　　A：proprietary

　　B：impenetrable

　　C：immutable

　　D：didactic

　　E：self-perpetuating

　　答案：A

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