下列函数是同一函数的是( )<br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/f03d78ae6f8ded5b89474b46d18b11c6.png"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/cb8fab0084fe3185b896faffd47d8268.png"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/4242c925d75d787cfe5390ddd2c02ac7.png"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/aaa26e9935a00a1e4d1e4cae7b6e78a9.png"/>