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】Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.
选项:
A.almost
B.definitely
C.already
D.universally
答案:
解析:
1、【题目】Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.
选项:
A.schemes
B.means
C.tracks
D.variables
答案:
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】Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.
选项:
A.hand-carved
B.roughlymade
C.flat
D.heavy
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】HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
选项:
A.only
B.exactly
C.atleast
D.fewerthan
答案:
解析:
1、【题目】The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.
选项:
A.slithering
B.radiating
C.interfering
D.murmuring
答案:
B
解析:
暂无解析
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
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