A.二尖瓣狭窄
B.二尖瓣关闭不全
C.主动脉瓣狭窄伴关闭不全
D.主动脉瓣关闭不全
E.主动脉瓣狭窄
第1题
第2题
第3题
第5题
A、A connotative meaning of a word
B、A cognitive meaning of a word
C、Denotative meaning of a word or a lexical item
D、Collocations
第6题
第7题
We need and use all of the words in a dictionary.
A.Right.
B.Wrong.
C.Doesn't say.
第8题
A. Collocations
B. A cognitive meaning of a word
C. A connotative meaning of a word
D. Denotative meaning of a word or a lexical item
第9题
We often use signs as well as words to tell people _________.
A.what to do
B.to do how
C.how to do
D.to do what
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