题目6单选题
根据组合体的主视图、俯视图,判断正确的左视图是( ) <img src="https://tihai-oss-cloud.itihey.com/img/749ac4fa432b3ba14f3ec702653de528.png">A. 以上都不正确B. <img src="https://tihai-oss-cloud.itihey.com/img/d587ba6644b1741b4f44161afbfafce0.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/49915ec334de61691ec34a7f168b0dae.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/afd0b9d675d2a7617d3a3d4061a12bf7.png">