【单选题】The word 'gulf' in the passage means ______.
A.
deep understanding between the old and the young
B.
different ideas between the mother and the daughter
C.
free talks between the mother and the daughter
【单选题】Jewish and Italian Americans usually think a raised voice means a beginning of a fight.
【单选题】下列选项中不属于我国公民基本义务的是______
【判断题】In the CMYK color model, C means cyan, M means magenta, Y means yellow, K means black.