in the present ,at the present,in the presence,at the presence的区别
问题描述：
in the present ,at the present,in the presence,at the presence的区别
答
in the present指在现在,如果用介系词at,则用at present,如：
There is no way at present of predicting which individuals will develop the disease.
presence表示“出席”,in the presence表示“出席中”.
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