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【单选题】
GSM900系统,天线选用的工作频段为?A.
850-910MHZ
B.
860-920MHZ
C.
880-940MHZ
D.
890-960MHZ
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】A__________ is a short written account of your education and your previous jobs that you send to an employer when you are looking for a new job.
【单选题】从文件列表中同时选择多个不相邻文件的正确操作是( )。
A.
按住Alt键,用鼠标单击每一个文件名
B.
按住 Ctrl键,用鼠标单击每一个文件名
C.
按住 Shift+Ctrl键,用鼠标单击每一个文件名
D.
按住 Shift键,用鼠标单击每一个文件名
【简答题】If we were asked exactly what we were doing a year ago,we should probably have to say that we could not remember But if we had kept a book and had written in it an account of what we did each day,we s...
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