Choose THREE letters, A-G. Write your answers in boxes 7-9 on your answer sheet. Which THREE of the following seven piec

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问题 Choose THREE letters, A-G.
Write your answers in boxes 7-9 on your answer sheet.
Which THREE of the following seven pieces of safety equipment are suggested for use with a hot air balloon?
A．Drop line
B．Gas valve
C．Piezo ignition
D．Synthetic clothing
E．Fire-proof gloves
F．Flint spark lighter
G．Propane combustion
Frequent ______ is important: fixing or changing faulty parts of the propulsion system when necessary.

选项

答案maintenance

解析

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Choose THREE letters, A-G. Write your answers in boxes 7-9 on your answer sheet. Which THREE of the following seven piec

雅思阅读

雅思（IELTS）

Forwhichofthefollowinglistsofnumberisthemedianequaltotheaverage(arithmeticmean)?

Abuzzersoundsevery15minutes.Ifthebuzzersoundedat12:40,whichofthefollowingcouldbeatimeatwhichthebuzzersou

Thefollowing2questionrefertothedataabove.

Juanwalked3moremilesthanRebecca.Rebeccawalked4timesasfarasWilliam.Williamwalked2miles.Whichofthefollowing

Tomhad6books.Hegave2tohissisterandthenpurchased3morebooksatthebookstore.Whichofthefollowingmathematicale

Whichofthefollowingequalsthereciprocalof,wheredoesnotequal0?

Accordingtothegraphs,whichofthefollowingisthebestestimateofthetotalnumberofemployeesin1990?

InwhichofthefollowingpairsofyearsweretheratiosofRepublicanreceiptstoDemocraticreceiptsmostnearlyequal?

Inatelephonesurveyofmorethan2000adults,21%saidtheybelievedthesunrevolved(旋转)aroundtheearth.An【C1】______21%di

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证明：

A、 B、 C、 A图片A是咖啡，图片B是可乐，图片C是可口可乐。故本题答案为A。