【单选题】V7截止期间,在集电极得到一定宽度的移相脉冲,在同步电压的正负半周都产生一个相隔( )的脉冲。
【单选题】企业移动应用开发目标与消费者需求之间的差距属于应用鸿沟。消费者一般并不关心特定企业移动应用APP( )。
【单选题】An invitation to treat is an indication of a person’s willingness to _________ a contract.
【单选题】以下( )项指的是边际效用
A.
张某吃了第二个面包,满足程度从10个效用单位增加到15个单位,增加了5个效用单位
D.
张某吃了两个面包,平均每个面包带给张某的满足程度为7.5个效用单位
【单选题】利用保证金实现杠杆作用的外汇交易是( )
【单选题】企业移动应用开发目标与消费者需求之间的差距属于应用鸿沟。消费者一般并不关心特定企业移动应用(APP)(2)
【单选题】听力原文:When the drawer and drawee of a bill are the same person, the holder may treat the instrument either as a bill of exchange or as a promissory note. (6)
A.
If both the drawer and drawee of an instrument are the same person, the instrument may be treated as a promissory note.
B.
In any case, the holder can treat the instrument as a bill of exchange or a promissory note.
C.
If both the drawer and drawee of an instrument are the same person, the instrument can only he treated as a promissory note.
D.
When the drawer and drawee of a bill are the same person, the holder may treat the instrument neither as a bill of exchange nor as a promissory note.
【单选题】V7 截止期间,在集电极得到一定宽度的移相脉冲,在同步电压的正负半周都产生一个相隔 ( ) 的脉冲。