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】The controls of most modern airplanes can be operated either manually or automatically.

选项：

A.bythebook

B.byamap

C.bylogic

D.byhand

答案：

D

解析：

暂无解析

1、【题目】Some animals pant and sweat to speed evaporation of body moisture and thus cool themselves.

选项：

A.wiggle摆动slowly

B.breathequickly

C.rest

D.perspire

答案：

D

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】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】The economy of Dallas, Texas, is strong and diversified .

选项：

A.inflated

B.stable

C.varied

D.well-regulated

答案：

C

解析：

暂无解析

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】Oneofthegreatestbreakthroughsforprofessionalwomencamein1973whenthefieldofbankingopenedupforthem.

选项：

A.mostseriousdisappointments

B.mostsignificantadvances

C.mostabruptdeclines

D.mostcrucialsituations

答案：

解析：

1、【题目】TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.

选项：

A.completelydestroy

B.carefullydisguise

C.sustain

D.contain

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】Mary McCarthy s satires 讽刺文学 are couched in a prose style that has a classic precision.

选项：

A.fused

B.prefaced

C.standardized

D.expressed

答案：

D

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】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