单项选择题
A.HD SDI B.COM1 C.COM2 D.COM3
A.IP B.E1 C.3G D.ISDN
A.1080*720逐行扫描 B.1080*720隔行扫描 C.1920*1080逐行扫描 D.1920*1080隔行扫描
A.352x288 B.704x576 C.1280x720 D.1920×1080
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