【单选题】—Look, here is my new mobile phone. —It's very nice. Could you tell me _____ ? [ ]
【判断题】在节假日和旅游季节,铁道部门增加的郊游旅客列车,车次前冠以字母 “J” 。
【单选题】UPC-A 条码左侧 6 个条码字符均由()子集的条码字符组成,右侧数据符及校验符均由 子集的条码字符组成。
【单选题】How is mobile phone use compared to tobacco use in this article?
A.
Both cause brain tumours
B.
Both need long-term studies
C.
They are equally hazardous
【判断题】在节假日和旅游季节,铁道部门增加的郊游旅客列车,车次前冠以字母“J”。
【判断题】在节假日和旅游季节,铁道部门增加的郊游列车,车次前冠以字母“JY”。