【单选题】数字信号和模拟信号的不同之处是( )
A.
数字信号在大小上不连续,时间上连续,而模拟信号则相反
B.
数字信号在大小上连续,时间上不连续,而模拟信号则相反
C.
数字信号在大小和时间上均不连续,而模拟信号则相反
D.
数字信号在大小和时间上均连续,而模拟信号则相反
【单选题】All the football fans shouted and cheered so much that you could hardly hear _____ else. [ ]
【单选题】走私、贩卖、运输、制造鸦片不满二百克、海洛因或者甲基苯丙胺不满十克或者其他少量毒品,情节严重的______
【简答题】Throughout our childhood our parents taught us to say “thank you” and it has become a habit — something we say automatically (自动地), along with “please”. And because of this we have forgotten just how ...
【单选题】走私、贩卖、运输、制造鸦片不满二百克、海洛因或者甲基苯丙胺不满十克或者其他少量毒品的______
【单选题】在维修确认环节中针对第一次回厂的客户应该在制单前帮助客户确认并建立什么?( )
【单选题】--- What can I do for you, sir? --- It’s so hot now. Could you give me _____________.
B.
anything cold to drink
D.
something cold to drink
【简答题】中性粒细胞的毒性变化包括中毒颗粒、空泡变性、____、____。