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【多选题】
新航行系统在技术、经济效益方面有着巨大优越性,其组成部分包括哪些?A.
通信
B.
导航
C.
监视
D.
空中交通管理
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】异步电机的定子铁心和转子铁心都用硅钢片叠成，为什么同步电机的定子铁心用硅钢片叠成，而转子铁心却用整块钢材料做成?
【简答题】Read three articles about companies and business law. Which article (A, B or C) does each of these statements 1-7 refer to?
【简答题】It is up to you to decide what you are going to read this week. You can read: 1)two or three chapters of an English book; 2) English stories; 3) two or three articles from English newspapers or maga...
【简答题】异步电机的定子铁心和转子铁心都用硅钢片叠成，为什么同步电机的定子铁心用硅钢片叠成，而转子铁心却用整块钢材料做成?
【简答题】为什么异步电机的定子铁心和转子铁心都要用硅钢片制成?
【简答题】It is up to you to decide what you are going to read this week. You can read: 1) two or three chapters of an English book; 2) English stories; 3) two or three articles from English newspapers or mag...
【判断题】Rhetorical questions are questions for which the answer is obvious or already known. It is used to make the readers think.
A.
正确
B.
错误
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