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　　Substantial atmosphere around planetary bodies acts as (i)_____ incoming objects. Smaller objects, particularly those that are lower in density and more fragile, (ii)_____ in the upper reaches of the atmosphere, whereas more intact, larger bodies may survive to impact the surface. Thus,relative to large craters, small craters are much less (iii)_____ on bodies with dense atmosphere,such as Earth, Venus, and Titan, than they are on Mercury and Moon.

　　Blank (I)Blank (II)Blank (III)

　　A：effective obscurers of D：vaporize G：unusual

　　B：significant filters to E：proliferate H：persistent

　　C：impenetrable barriers against F：agglomerate I：common

　　答案：BFI

　　Many scholars studying leadership _____ cult of the celebrity that has been fostered both by the media and by politicians’ public relations staffs, arguing that it trivialized politics.

　　A：abet

　　B：decry

　　C：question

　　D：analyze

　　E：countenance

　　F：condemn

　　答案：BF

　　Experimentation in the arts often generates befuddlement, and even _____ of innovative art generally have voiced perplexity regarding this new, experimental artwork.

　　A：proponents

　　B：vilifiers

　　C：defenders

　　D：belittlers

　　E：vendors

　　F：luminaries

　　答案：BD

　　The sailors realized too late that winds had shifted the ice in such a way as to obstruct the ship’s path; this process had been so _____ that it was completed by the time they discovered the effect.

　　A：gradual

　　B：negligible

　　C：unpredictable

　　D：time-consuming

　　E：inconsequential

　　F：imperceptible

　　答案：BF

　　What makes the precisely oriented flight of a honeybee swarm to its new home so _____ is that only a small percentage of its members know the swarm travel rout and final destination.

　　A：exact

　　B：unpredictable

　　C：amazing

　　D：erratic

　　E：reliable

　　F：wondrous

　　答案：CF

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