单项选择题

At first, the professor was talking about the problem of education, he suddenly ______ to another topic.

A．switched
B．committed
C．favored
D．transmitted
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单项选择题
Only a few people have ______ to the full facts of the case.
A．approach
B．admission
C．access
D．acquaintance
单项选择题
Please do not be ______ by his bad manners since he is merely trying to attract attention.
A．disregarded
B．distorted
C．irritated
D．intervened
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