外语学习的“高原期”指的是（ ）
下列语素中属于自由语素的是（ ）
下列词中全都由复合构词的方式构成的是（ ）
下列各组复合词中,构词方式相同的一组是（ ）
下列词语中,不属于偏义复合词的一项是（ ）
下列词中不含词缀的是（ ）
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3.2第二语言学习
中介语在学习初期发展较快,越到学习后期发展就越慢,后面这一阶段称作外语学习的“高原期”。
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