"Turn on” and "turn off" are antonymous idioms, resulting from ( ).
"Turn on” and "turn off" are antonymous idioms, resulting from ( ).
A、replacement
B、addition
C、shortening
D、position-shifting
【正确答案】:A
【题目解析】:“turn on”和“turn off”是反义词习语,由介词的替换而来——on和off的替换。
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