1、【题目】The future survival of the bald eagle is still an important American ecological concern.
选项：
A.migration
B.population
C.existence
D.evolution
答案：
C
解析：
暂无解析
1、【题目】ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.
选项：
A.exhibition
B.concert
C.excursion
D.contest
答案：
解析：
1、【题目】The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.
选项：
A.occurrence
B.remnants残留物
C.witnesses
D.parallel
答案：
D
解析：
暂无解析
1、【题目】Blue－greenalgaegrowabundantlyinsaltmarshes.
选项：
A.primarily
B.slowly
C.onplants(cultivate)
D.ingreatnumbers
答案：
解析：
1、【题目】Double Eagle in the first transatlantic balloon, was greeted by avid crowds in France.
选项：
A.eager
B.surging
C.appreciative
D.vigorous
答案：
A
解析：
暂无解析
1、【题目】Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
选项：
A.whipped
B.aged
C.boiled
D.cracked
答案：
解析：
1、【题目】Urban renewal programs strive to upgrade areas that are becoming slums.
选项：
A.reproach
B.improve
C.fortify
D.uproot
答案：
B
解析：
暂无解析
1、【题目】Alligators still exist in some of the dank 潮湿 swamps and bayous小海湾 of Alabama's coastal regions.
选项：
A.weirdly古怪的fascinating
B.mythical
C.drab(monotonous)
D.unpleasantlyhumid
答案：
D
解析：
暂无解析
1、【题目】Insect pests are among the leading causes of crop failure.
选项：
A.expected
B.chief
C.natural
D.least
答案：
B
解析：
暂无解析
1、【题目】Although the Carbon 14 method of dating old objects is not foolproof , it is the best method available at present
选项：
A.whollyoperational
B.entirelyserviceable
C.fullyreliable
D.completelysafe
答案：
C
解析：
暂无解析
1、【题目】Whencarbonisaddedtoironintheproperproportions,theresultissteel.
选项：
A.container
B.sequence
C.laboratories
D.amounts
答案：
解析：
1、【题目】HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
选项：
A.only
B.exactly
C.atleast
D.fewerthan
答案：
解析：
1、【题目】WhileBillieHolidaydidnotinventthemusiccalled"theblues",shemostassuredlyhelpedpopularizeit.
选项：
A.finally
B.certainly
C.earnestly
D.enthusiastically
答案：
解析：
1、【题目】How many people are aware that a dancer with the New York City Ballet typically wears out a minimum of two hundred pairs of toe shoes per year?
选项：
A.only
B.exactly
C.atleast
D.fewerthan
答案：
C
解析：
暂无解析
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