I don't know___ they have passed the exam. A.what B.if C.when D.where 试题答案 在线课程 B 解析试题分析: 句意:我不知道他们是否通过了考试?此题考查宾语从句if 是否的意思;根据句意,故选B。考点:考查宾语从句。练习册系列答案 状元坊广东...
Click on a square [■] to insert the sentence in the passage. A. Square A. B. Square B. C. Square C. D. Square D.如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: D 复制 纠错
This invention relates to electrical signaling t systems and, more particularly, to radio receiving t systems wherein it is desired to use one of a e plurality of radio sets with a single antenna and i to automatically connect only one radio receiving set to the antenna at any one time. ...