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英语〖Themegaphone(microphone)makesthevoicesoundlouderbecauseitpointssoundwavesinonedi〗相关单选题
 更新时间:2024-04-20 19:22:10

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】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】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】Themegaphone(microphone)makesthevoicesoundlouderbecauseitpointssoundwavesinonedirectionandkeepsthemfromspreadingoutinalldirections.

选项:

A.slithering

B.radiating

C.interfering

D.murmuring

答案:

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】Amythical(imaginary)creature,thedragonwasbelievedtohavelion'sclaws,scalyskin,andfierybreath.

选项:

A.legendary

B.magical

C.frightening

D.perplexing

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】Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.

选项:

A.occurrence

B.remnants残留物

C.witnesses

D.parallel

答案:

解析:

1、【题目】Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.

选项:

A.asaresultof

B.considering

C.cognizantof(consciousof,awareof)

D.whatever

答案:

解析:

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