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【简答题】
GPS的空间部分是由【】颗GPS工作卫星所组成.这些GPS工作卫星共同组成了GPS卫星星座,其中【】颗为可用于导航的卫星,【】颗为活动的备用卫星。 这24颗卫星分布在【】个相互夹角为60°的轨道上绕地球运行。
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【简答题】A．Get the university's approval in advance. B．Follow Susan's advice about traveling abroad. C．Take more French courses to improve his skills. D．Make inquiries about the requirements for teaching chemi...
【简答题】相声是语言的艺术,讲究的是说、学、逗和()。
【简答题】A．Get the university's approval in advance. B．Follow Susan's advice about traveling abroad. C．Take more French courses to improve his skills. D．Make inquiries about the requirements for teaching chemi...
【单选题】You must have said something to______ her, as she was crying after talking with you.
A.
defend
B.
offend
C.
confuse
D.
offer
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