【单选题】when was the first digital camera phonereleased?
【简答题】The first modern digital computers were developed in the 1940s for military purposes that arose during World War II. These computers filled entire rooms, and with rates of a few thousand calculations ...
【单选题】集成电路是微电子技术的核心,它是以先进的工艺和具体技术为基础的高科技,没有扩散工艺、平面工艺等的技术突破,集成电路是不可能成功的,第一块集成电路诞生于哪一年()
【简答题】Where will digital radio first appear?
【多选题】Which of the following are true for Digital First period?
A.
The technology platform was mobile devices.
B.
The news does not stop at 5 PM, but goes on 24 hours a day, 7 days a week.
C.
Newspapers adopted multimedia elements such as video, added more interactive elements like crossword puzzles and contests.
D.
To engage readers on a personal level.
【单选题】在人类社会历史上曾经发生过三次重大技术革命,其本质都是源于人类在( )上的突破。
【单选题】甲公司为增值税一般纳税人,适用的増值率为13%,2019年12月1日,甲公司“应收账款——乙公司”明细科目借方余额为60万元,“应收账款——丙公司”明细科目贷方余额为40万元,“坏账准备”科目贷方余额为3万元。甲公司未设置“预收账款”科目。2019年12月,甲公司发生的相关经济业务如下: (1)5日,向乙公司销售L产品2000件,开具增值税专用发票注明的价款为20万元,增值税税额2.6万元,产品已...