【单选题】以下描述正确的是
D.
眼睛受到强光照射后出现视觉模糊的现象称为视觉适应
【简答题】It is no use debating the relative merits of this policy.
【单选题】It is no use( ).
A.
to cry over spilt milk
D.
in crying over spilt milk
【简答题】It is no use debating the relative merits of this policy.
【单选题】分压式偏置电路如图2,增大电阻RB2,其它参数不变,会使( )【图片】
【简答题】It is no use theory without practice.A. is no use doing sth是一个习惯用语,意为作什么事没用 B. learning B. learned C. learn D. to learn
【简答题】It is no use doing sth.