1、【题目】Despite the proliferation of other faster modes of transportation, the railroads remain the largest carriers of intercity freight in the United States.
选项：
A.schemes
B.means
C.tracks
D.variables
答案：
B
解析：
暂无解析
1、【题目】The company issues an annual report every March.
选项：
A.ayearly
B.acomprehensive
C.afinancial
D.aproduct
答案：
A
解析：
暂无解析
1、【题目】Comets are still regarded with awe by some people.
选项：
A.wonder
B.concern
C.resentment
D.detachment
答案：
A
解析：
暂无解析
1、【题目】Withtheacquisitionofsmallercompaniesbylargerones,the1960'ssawawaveofnewconglomerates.
选项：
A.surge
B.handful
C.suspension
D.dissolution分解
答案：
解析：
1、【题目】Oneofthegreatestbreakthroughsforprofessionalwomencamein1973whenthefieldofbankingopenedupforthem.
选项：
A.mostseriousdisappointments
B.mostsignificantadvances
C.mostabruptdeclines
D.mostcrucialsituations
答案：
解析：
1、【题目】Someseaurchins海胆havevenomous(toxin)spines
选项：
A.sensuous(feeling)
B.crooked(twisted)
C.poisonous
D.sticky
答案：
解析：
1、【题目】Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.
选项：
A.bythebook
B.byamap
C.bylogic
D.byhand
答案：
解析：
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】In1861itseemedinevitablethattheSouthernstateswouldbreakawayfromtheUnion.
选项：
A.strange
B.certain
C.inconsistent
D.proper
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】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
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】Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.
选项：
A.schemes
B.means
C.tracks
D.variables
答案：
解析：
1、【题目】Peoplewhodonotsleepenoughtendtobecomeirritable.
选项：
A.easilyannoyed
B.ill
C.weary
D.stiffandsore
答案：
解析：
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