The price of aluminum was sharply reduced when people discovered a new refining process with the aid of ______. Aluminum is fou

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问题 The price of aluminum was sharply reduced when people discovered a new refining process with the aid of ______.
Aluminum is found on earth mostly in the form of ______.

选项 A、pure metal
B、bauxite
C、gold
D、liquid

答案B

解析本题为客观细节题。从最后一段“it is fortunate that bauxite(铝土矿)，which is one of its chief sources，is also one of the earth’s most plentiful substances”可知铝主要以铝土矿的形式存在。

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本试题收录于：英语题库成考专升本分类

英语

成考专升本

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The price of aluminum was sharply reduced when people discovered a new refining process with the aid of ______. Aluminum is fou

英语

成考专升本

(Asisoftenthecase),themoreyouuseyourbrain,themoreactiveitwillbecome.

ThebabywassenttoahospitalinLondonbecause______.WhenthebabywasfirstsenttothehospitalinLondon,herillness

Shedidnotwanttosharetheroomwithherbrotherbecauseshecouldnot______hisbadhabits.

HereturnedtotheU.S.______anabsenceofnearlyfiftyyears.

Cultureshockisanoccupationaldisease(职业病)forpeoplewhohavebeensuddenlytransplantedabroad.Cultureshockiscaused

PiotrekKowalski,18,comesfromPolandandwouldlikeapenpalwhoisinterestedindiscussingthecurrentpoliticalsituation

LawyersareregardedasDarthVadersoftheNewAgeinAmerica.Americahasbecomeoverpopulatedwithlawyers—thelegalprofessi

Notonly______properly,butthatcookerisdangerousbecauseofallthoseloosewiresattheback.

Itisstillsometimesdifficulttounderstandwhythosebetweenages10and18wouldendangertheirlivesbyjoiningarmedforce

中央一号文件连续多年关注“三农”。与往年不同的是，2019年中央一号文件将()作为首个硬任务。

Web服务的统一资源地址URL的资源类型是()。

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