【单选题】Which city is Canton fair held in?
【判断题】由于记账凭证错误而导致账簿记录错误,应采用划线更正法进行更正 ( )。
【单选题】MCS-51系列单片机共有( )条指令。
【单选题】When was the first Canton Fair held in Guangzhou?
A.
In the spring of 1956.
B.
In the autumn of 1956.
C.
In the spring of 1957.
D.
In the autumn of 1957.