A New finding about the upper atmosphere B Stratosphere C Ionosphere D The composition of the permanent gases in the atmosph

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问题 A  New finding about the upper atmosphere
B  Stratosphere
C  Ionosphere
D  The composition of the permanent gases in the atmosphere.
E  The suspension of dust
F  Tropophere
A at constant rate
B in a few years
C an the weight of the atmosphere
D within the troposphere
E oxygen and nitrogen
F it consists of electrically charged particles called irons which from sun

选项

答案E

解析

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A New finding about the upper atmosphere B Stratosphere C Ionosphere D The composition of the permanent gases in the atmosph

职称英语理工类基础

职称英语

ThereisalwaysexcitementattheOlympicGameswhenanathletebreaksapreviousrecordofperformance.

U.S.LifeExpectancyHitsNewHighLifeexpectancyratesintheUnitedStatesareatanall-timehigh,withpeoplebornin2

ManyAmericanwomenhaveapoorknowledgeofcancer.ACOG’seffortstoeducatewomenaboutcancerwillbegreatlyappreciated.

Whenpeoplewithdepressiontriedtostopsmokingtheyare______.Howdidpeople,whonewlygaveupsmoking,easilyfeel?

Accordingtothepassage,whichofthefollowinghaschangedthemostinthelast500years?ThousandsofIrishpeoplestarved

Coldsarecausedbyexposuretosevereweather.Coldvirusescanremaininfectiousforupto10hours.

Strawberries:Inastudythattrackedthedietsandhealthof1,271peopleinMassachusetts,researchersattheHarvardSchool

HomeSchoolingAllchildrenintheUnitedStateshavetoreceiveaneducation,butthelawdoesnotsaytheyhavetobeeducated

Inthe1ststudy,studentswhostayuplate______.Mr.Taylorbelievedthatthefindingoftheirstudywouldsoon______.

1206年，蒙古部落领袖()，在斡难河源召开的贵族大会上被推举为蒙古大汗，尊称为成吉思汗。

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