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【单选题】
He has two pencils, _____ was given by his brother as a birthday present.A.
the longer one
B.
the longer of which
C.
the longest
D.
one of them
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【简答题】铸造可分为()、()。
【单选题】What is the trend in the English language that this book emphasizes?
A.
The English language is becoming assimilated with other languages.
B.
Differences between languages are more and more obvious.
C.
The English language is always absorbing words from other languages and turning them into its own.
D.
The English language is gradually losing its linguistic vitality.
【简答题】特种铸造,按造型材料又可分为以 为主要造型材料的特种铸造(如熔模铸造)和以金属为主要铸型材料的特种铸造(如金属型铸造、压力铸造)两类。
【简答题】铸造方法从总体上可分为普通铸造和特种铸造两大类，普通铸造是指砂型铸造方法，不同于砂型铸造的其他铸造方法统称为特种铸造，常用的特种铸造方法有：（）、（）、（）、（）、等。