请问concern在做动词时,concerning和about是等价的吗??? 例如大全35题
According to a panel of health officials, there has been a great deal of confusion in the medical profession about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to health.
(A) about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to
如果about换成concerning,答案是否也正确???
谢谢牛人们
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