Which of the following would be the most appropriate title for the passage? It can be inferred from the passage that the gases

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问题 Which of the following would be the most appropriate title for the passage?
It can be inferred from the passage that the gases of the Earth’s atmosphere are contained by ______.

选项 A、a closed surface
B、the gravity of the planet
C、the field of space
D、its critical point

答案B

解析依据文章第四句话：因为气体将扩散到有可能到达的整个空间，所以必须存于一个封闭的容器内，至于地球上的大气，则是由于重力场的作用而使其不致外散。

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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

公共英语（PETS）

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Which of the following would be the most appropriate title for the passage? It can be inferred from the passage that the gases

公共英语二级笔试

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About10yearsagoImetanadvertisingexecutiveinNewYorkwhoexplainedthedifficultyofadvertisinganewbrandofdeodora

Giventhechoice,youngerprofessionalsaremostinterestedinworkingattechcompanieslikeAppleandgovernmentagencieslike

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FollowingMartinWedell’spiece"Localteacherornativespeaker?"nowisperhapsagoodtimetoexplorethediscomfortoverthe

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Giventhechoice,youngerprofessionalsaremostinterestedinworkingattechcompanieslikeAppleandgovernmentagencieslike

Thediseasehascompletely______inthiscountry.

Soexcitedandjoyful______thatweweresooncompletelylostinpayingandlaughing.

TheflintstatedaimofU.N.was______.Amembercountrycannotally(结盟)itselfwith______.

TheflintstatedaimofU.N.was______.UnderitsCharter,theU.N.guarantees(保证)______.

购买写字楼客户的心理特征较住宅有较大差异，主要体现在()。

某进口设备，离岸价为200万元，到岸价为210万元。银行手续费为1万元，进口关税为21万元，增值税税率为17%，不计消费税，则增值税税额为( )万元。

工程勘察报告《钻孔柱状图》反映()岩土层厚度、分布、性质、取样和测试的位置、实测标准贯入击数、地下水位，有关的物理力学指标(如天然含水量、孔隙比、无侧限抗压强度等)。

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通常认为左撇子比右撇子更容易出事故。这是一种误解。事实上，大多数家务事故，大到火灾、烫伤，小到切破手指，都出自右撇子。以上哪项最为恰当地概括了上述论证中的漏洞?

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WhichofthefollowingisNOTacorrectviewonstress?WhichofthefollowingisNOTmentionedasapossiblecurefornegative

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TheflintstatedaimofU.N.was.UnderitsCharter,theU.N.guarantees(保证).

某进口设备，离岸价为200万元，到岸价为210万元。银行手续费为1万元，进口关税为21万元，增值税税率为17%，不计消费税，则增值税税额为(　　)万元。

TheFamilyThenandNow　　Thingswerenevereasywithinthefamily.Butatatimewhenthefamilywasorientedtowardtheproduc