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　　In one theory, as people learn things throughout the day, connections between neurons get strengthened; but during sleep then all synapses are weakened, tenuous connections are ______ and only the strongest bonds could remain.

　　A：reinforced

　　B：reproduced

　　C：replaced

　　D：stimulated

　　E：severed

　　答案：E

　　Holston characterized a colonial situation as an aggregation of activities and a conjunction of outcomes that, though ______ and at times coordinated, were usually diffuse, disorganized, and even contradictory.

　　A：dubious

　　B：chaotic

　　C：harmonious

　　D：linked

　　E：imputed

　　答案：D

　　Despite dispute between the sisters lasted all summer, Megan remained (i)______ and Lauren was equally (ii)______.

　　Blank (I)Blank (II)

　　A：intransigent D：indolent

　　B：feckless E：uncompromising

　　C：munificent F：taciturn

　　答案：AE

　　Until the advent of film, commercial entertainment in England occurred only where concentrated urban populations provided audiences large enough to make it remunerative: theaters and music halls were (i)______ in rural villages. But village cinemas quickly become (ii)______ even though they were ramshackle affairs in comparison to the urban picture palaces.

　　Blank (I)Blank (II)

　　A：spartan D：commonplace

　　B：conceivable E：sophisticated

　　C：profitable F：unfashionable

　　答案：AD

　　Among wide-ranging animal species, populations at the edge of the species' range are

　　frequently exposed to less (i)______ and more variable conditions than those in other parts on the range. As a results, the animals' abundance is often (ii)_______.

　　Blank (I)Blank (II)

　　A：erratic D： lower at the periphery

　　B：favorable E：unaffected by habitat

　　C：demanding F：underestimated by researchers

　　答案：BD

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