单项选择题

For instance, the public may not fully understand the physical principles behind lasers, but it clearly can appreciate the extraordinary medical benefits ______ this technology.

A．as a result of
B．that result in
C．the result of which is in
D．resulting from

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单项选择题

Some would consider such speech an infringement of good mariners whereas others would not.

A．an example
B．a violation
C．an insult
D．an indication

单项选择题

Those regions inhabited mostly by national minorities in the Northwest of the country are retarded in terms of social progress and economic development ______ the coastal provinces.

A．in relevance to
B．in conformity with
C．in relation to
D．in accordance with

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