题目1单选题
通过曲线<img src="https://tihai-oss-cloud.itihey.com/img/b3badac3557bcb7db3dc43a56229ad75.png">,母线平行于y轴的柱面方程为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/8f1275b87bb4120fc97e1cab5eaafed7.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/dcdfe29c625630f1f54183f2e9e78956.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/efa7886ea1bf5348b2fa05f08fba3585.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/09d9c8d47fc3f7adb79236a24fdd83ae.png">