单项选择题

Jack is very ______ about wines.

A. aware
B. knowledgeable
C. learned
D. informed
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单项选择题
When workers push together to organize themselves in trade unions, employers find it hard to lay them ______.
A. off
B. aside
C. out
D. down
单项选择题
When he was driving home, he was stopped by the policeman and was ______ of speeding.
A. charged
B. blamed
C. accused
D. warned
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