Which of the following is true of Earl Millers research？
A. It discovers neuroplasticity.
B. It is the first study of this kind.
C. It studies one environmental feedback.
D. It attests to one cause of neuroplasticity.
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Measures that can be taken to prevent language loss include
A. turning endangered languages into dominant languages.
B. protecting minority groups by slowing economic growth.
C. relying on the joint efforts of linguists and government.
D. conducting comparative investigation across languages.
The start of language dying is indicated by
A. the disappearance of its last speakers.
B. the fact that new generations stop using it.
C. the official ban on speaking it.
D. its new generations" decreased use of it.
One of the difficulties in differentiating one language from another is that
A. one language may have many dialects.
B. grammar study on some languages is not enough.
C. they are dialects of the same languages.
D. grammars reflected by languages are different.
We can infer from the metaphor in the last paragraph that
A. dead languages are similar to fossils in biological sense.
B. documentation is not enough for us to understand dead languages.
C. fossil records give a complete picture of ancient lives.
D. dead languages can remain alive if they are documented properly.
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