The following idioms show that many idioms are grammatically una

The following idioms show that many idioms are grammatically unanalysable EXCEPT（ ）.
A、Like cures like
B、sure as eggs is eggs
C、Jack of all trades
D、diamond cut diamond
【正确答案】：C
【题目解析】：本题考查习语的稳定性。很多习语在语法上是不可分析的（many idioms are grammatically unanalysable）例如：diamond cut diamond；like cures like；（as） sure as eggs is eggs。而Jack of all trades属于习语的变异形式，是通过缩略（shortening）Jack of all trades and master of none形成的。故C选项符合题意。