问题 更新时间2023/4/3 12:59:00 18、 It is quite necessary for a qualified teacher to have good manners and _____ knowledge. [ 1 分 ]A. extensiveB. ineffectiveC. expensiveD. intensive 答案 登录 注册 参考答案: A 出自:文鼎教育 >> 乐山师范学院-高级英语