In the idiom 'in good feather', we change 'good' into 'high, ful

In the idiom 'in good feather', we change 'good' into 'high, full' without changing meaning. This change of constituent is known as _____ . [ ]
A、addition
B、replacement
C、position-shifting
D、variation
【正确答案】：B
【题目解析】：参考教材P176，本题考查习语的种类。在成语“In good feather”中，我们把“good”变成了“high, full”，意思没有改变。这种成分的变化称为置换。