城网一典型结线方式()、多回线式、环式、格网式和连络线。 发布时间:2017-05-23 10:46 │ 来源:www.tikuol.com 题型:填空题 问题: 城网一典型结线方式()、多回线式、环式、格网式和连络线。
题型:填空题 It's wise of you to ________ your father's advice when you come to any difficulty.[ ]A. ask B. seek C. try D. attempt 查看答案