【单选题】按照作业的消耗对象不同,可将作业分为( )
【单选题】在考古发掘中,经过火焚烧的地面或墙壁被称为?
【单选题】Carl is studying _____ food science at college and hopes to open up _____ meat processing factory of his own one day.
【单选题】I had a really hard time _____studying science this term.
【简答题】Carl is studying ________ food science at college and hopes to open up ________meat processing factory of his own one day. /;a B. /;the C. the;a D. the;the