44.Which of the following descriptions about petroleum is true?
(A) Petroleum can be safe and clean.
(B) Petroleum can be used up soon.
(C) Green chemists try to improve the use of petroleum.
(D) Europeans depend less on petroleum than Americans do.

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統計： A(102), B(896), C(728), D(204), E(0) #546802

詳解 (共 4 筆)

#969116

因為這句話: Since petroleum is expensive, toxic, and likely to be gone within decades,

因為石油又貴又有毒，而且在近十年快要被用完了。

所以B是對的。

C說要改善使用石油的方式，內文說要發展生化燃料取代石油，沒有要改善石油。

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#964763
One important goal of green chemistry today is finding ways to stop the world’s dependence on petroleum. 
(C) they try to replace Petrolum
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#3848913
（d）石油可以很快用完。
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#954435
Why？
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私人筆記 (共 1 筆)

私人筆記#6499382
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解析： (B) Petroleum c...
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