Backformation is a productive way of forming nouns in Modern English.
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Inflection is a particular way of word-formations.
A. 对
B. 错
We can always tell by the words that a compound contains what it means because the meaning of a compound is always the sum of the meanings of its parts.
A. 对
B. 错
All roots are free and all affixes are bound
A. 对
B. 错
日本全面侵华战争开始的标志是( ),同时中国的抗日战争进入全国性抗战的新时期
A. 九一八事变
B. 七七事变
C. 八一三事变
D. 华北事变