The first paragraph mainly tells us ______. Which of the following pictures best tells the movements of warm air and cold air?

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问题 The first paragraph mainly tells us ______.
Which of the following pictures best tells the movements of warm air and cold air?

选项 A、

B、

C、

D、

答案B

解析根据第二段的第三句可知：热空气上升，冷空气取而代之，故选B。

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

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The first paragraph mainly tells us ______. Which of the following pictures best tells the movements of warm air and cold air?

公共英语二级笔试

公共英语（PETS）

Whataretheytalkingabout?

Themainideaofthefirstparagraphis.Plantswithrootsappearedaboutmillionyearsago.

Inthissmalltowntherewasnotasinglemanofimportancewhowoulddaretohaveahouse.keeperyoungerthansixty,forfear

--WhydoesSaraknowsomuchaboutAngkorWat?--She______havebeenthere,orbecauseofsomeotherreasons.

TheweatherinChinaisdifferentfrom______.

Wheredidthehorseoriginate?Whatcanbesaidaboutthevarietiesofhorses?

—______thesportsmeetmightbeputoff.—Yes.Italldependsontheweather.

--Whatwereyouuptowhenshedroppedin?--Iforawhileandsomereading.

Moreandmorepeoplearetakingpartindangeroussportsandactivitiesaroundtheworld.Ofcourse,therehavealwaysbeenpeop

设有定义：struct{intn；floatx；}s[2]，m[2]={{10，2．8}，{0，0．0}}；则以下赋值语句中正确的是()。

30年代，在台湾文坛发生了一场大的论争，由此增强了影响力的是()

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