1、【题目】The Salk vaccine is a major factor in the fight to eradicate polio.
选项：
A.completelydestroy
B.carefullydisguise
C.sustain
D.contain
答案：
A
解析：
暂无解析
1、【题目】Blue－green algae grow abundantly in salt marshes.
选项：
A.primarily
B.slowly
C.onplants(cultivate)
D.ingreatnumbers
答案：
D
解析：
暂无解析
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】One of the greatest breakthroughs for professional women came in 1973 when the field of banking opened up for them.
选项：
A.mostseriousdisappointments
B.mostsignificantadvances
C.mostabruptdeclines
D.mostcrucialsituations
答案：
B
解析：
暂无解析
1、【题目】Peoplewhodonotsleepenoughtendtobecomeirritable.
选项：
A.easilyannoyed
B.ill
C.weary
D.stiffandsore
答案：
解析：
1、【题目】Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.
选项：
A.insatiable贪的无厌的
B.inherent
C.indiscriminate不加选择的
D.incredible
答案：
解析：
1、【题目】With lasers scientists can probe many physical processes, such as combustion, once beyond our ken.视野
选项：
A.understanding
B.responsibility
C.interpretation
D.notice
答案：
A
解析：
暂无解析
1、【题目】 All living organisms, regardless of their unique identity, have certain biological, chemical, and physical characteristics in common.
选项：
A.asaresultof
B.considering
C.cognizantof(consciousof,awareof)
D.whatever
答案：
D
解析：
暂无解析
1、【题目】While Billie Holiday did not invent the music called "the blues", she most assuredly helped popularize it.
选项：
A.finally
B.certainly
C.earnestly
D.enthusiastically
答案：
B
解析：
暂无解析
1、【题目】The first paper was made from the bark of the mulberry tree.
选项：
A.driedwood
B.outercovering
C.syrup(sirup)
D.root
答案：
B
解析：
暂无解析
1、【题目】Amythical(imaginary)creature,thedragonwasbelievedtohavelion'sclaws,scalyskin,andfierybreath.
选项：
A.legendary
B.magical
C.frightening
D.perplexing
答案：
解析：
1、【题目】Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.
选项：
A.straight
B.safe
C.real
D.rapid
答案：
解析：
1、【题目】Some children display an unquenchable 难以抑制的 curiosity about every new thing they encounter.
选项：
A.insatiable贪的无厌的
B.inherent
C.indiscriminate不加选择的
D.incredible
答案：
A
解析：
暂无解析
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