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【简答题】
是催化裂化的特征反应，这是FCC产品饱和度较高的根本原因。
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皮皮学刷刷变学霸
举一反三
【单选题】Our words are meaningless and cannot be distinguished from their opposites, as can be proved by an example. People think that they know the difference between the meanings of 'bald' and 'having hair. ...
A.
The word 'bald' can be translated into other languages.
B.
A word can have more than one meaning.
C.
A word such as 'cat' can be applied to several animals that differ in some respects.
D.
Words can lack precision without being meaningless.
E.
People cannot think clearly without using words.
【简答题】简述肌力的分级。
【单选题】It can be inferred from the passage that Social Security privatization will ______ .
A.
provide high returns for the new governments
B.
be strongly opposed by Wall Street
C.
bring the future retirees more benefits
D.
allow individuals to invest in personal accounts
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