What emitted from the exhaust pipe of the GM minivan the author drove is so clean that it is drinkable. To separate hydrogen fr

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问题 What emitted from the exhaust pipe of the GM minivan the author drove is so clean that it is drinkable.
To separate hydrogen from oxygen needs electricity that can be created by ______.

选项

答案fossil fuels and coal

解析由题干关键词To separate hydrogen from oxygen need electricity定位到第三个小标题下第三段第二、三句。根据这两句可知从氧里分解氢需要用电，而发电又要用到矿物燃料。

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大学英语六级

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What emitted from the exhaust pipe of the GM minivan the author drove is so clean that it is drinkable. To separate hydrogen fr

大学英语六级

A—assemblylineJ—safetybootsB—packerK—shippingclerkC—forkliftL—timecardD—explosivematerialsM—warehouseE—fireext

A—collectiveactionI—psychologicalsupportB—competitoranalysisJ—performance-relatedpayC—corporaterestructuringK—pays

Mostoftheretiredpeoplearehappy______theirquietlifeinthecountryside.

Itisgenerallyacceptedthatoldpeopleshouldhaveashareintherewardsformaterialandculturaladvancementstowhichthey

Directions：Thispartistotestyourabilitytodopracticalwriting．YouarerequiredtowriteALetterofComplaintaccordingt

Thispartistotestyourabilitytodopracticalwriting.YouarerequiredtowriteanEmailaccordingtothefollowinginforma

Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtowriteareportaccordingtothefollowinginforma

Lindafeelsexhaustedbecauseshe_____somanyvisitorstoday.

A—fluorescentlampJ—microwaveovenB—electricfanK—smokeexhausterC—dictatingmachine

A—fluorescentlampJ—microwaveovenB—electricfanK—smokeexhausterC—dictatingmachineL—juiceextract

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患儿女，10个月。牛奶喂养，未加辅食，近半月患儿皮肤渐苍白，进食少，不愿活动，血象Hb100g/L，RBC08×1012/L，为明确贫血的原因，下列哪项检查具有早期诊断价值

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市场细分的基础是()。

下列关于专项附加扣除的表述，正确的有()。

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