设<img src="https://static.zxtiku.com/wangke/imgs/topic/7d0461fd9d4bd836bb41cdc712bf5fc6.jpg"/>逆进针一周，则积分<img src="https://static.zxtiku.com/wangke/imgs/topic/a41ae86f39792acd69e337cf8043ab7d.jpg"/>的值等于<br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/837602dfe4dfc847c5469738501c6a3a.jpg"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/05851b439c469f6dbca9717e44cac8a4.jpg"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/c9916d1ec668cf5c2057a2ec038dc3f6.jpg"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/90e25f93514aeb2a535e6c9756288abc.jpg"/><br/> E、<img src="https://static.zxtiku.com/wangke/imgs/topic/f542838b38496e651aaa1fd2d97867dd.jpg"/><br/> F、<img src="https://static.zxtiku.com/wangke/imgs/topic/f4d8d581d96021981023b5424e71ab45.jpg"/><br/> G、<img src="https://static.zxtiku.com/wangke/imgs/topic/8b82f82250570bb7f1a916bcb5c9a7bc.jpg"/><br/> H、<img src="https://static.zxtiku.com/wangke/imgs/topic/e2ecc294ddf459b5f4bfefc4e5e212fa.jpg"/><br/> I、<img src="https://static.zxtiku.com/wangke/imgs/topic/f1e7e4bd069c4f08d94ffeeb94523c6b.jpg"/>