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「Themegaphone(microphone)makesthevoicesoundlouderbecauseitpointssoundwavesinonedi」相关单选题
 更新时间:2024-04-20 03:18:53

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】Eyespots, the most rudimentary eyes, are found in protozoan原生动物 flagellates 鞭毛虫 , flatworms 扁形虫 , and segmented worms片段 蠕虫 .

选项:

A.hostile-looking

B.perceptive

C.primitive

D.strangelyformed

答案:

C

解析:

暂无解析

1、【题目】Urban renewal programs strive to upgrade areas that are becoming slums.

选项:

A.reproach

B.improve

C.fortify

D.uproot

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】 Communication is one of the most important bonds that hold cultural systems together.

选项:

A.obligations

B.qualities

C.links

D.needs

答案:

C

解析:

暂无解析

1、【题目】Food must be moist in order to have a taste.

选项:

A.appetizing(delicious)

B.nutritious

C.damp

D.chewed

答案:

C

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】Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.

选项:

A.hand-carved

B.roughlymade

C.flat

D.heavy

答案:

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】Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.

选项:

A.almost

B.definitely

C.already

D.universally

答案:

解析:

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