A-A+ Which of the following is a back vowel？A．[i:]B．[i]C．[a]D．[u] 2025-06-11 10:04:18 外语考试 阅读 问题详情 Which of the following is a back vowel？A．[i:]B．[i]C．[a]D．[u]请帮忙给出正确答案和分析，谢谢！ 参考答案 查看解答
