A、J=D,K=<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526005496528b1ce07be19414e7992d5f933f08eb451image2.png"> <br>
B、K=D,J=<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152600549665961c458b5f9914f618e6a771c521ebfbbimage2.png"> <br>
C、J=K=D
D、J=K=<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526005496858d3481174b2384cf49ed27f1c78fc99bdimage2.png"><br>