【单选题】朋友帮了他很多忙,他欠他们的情
A.
He has a debt to his friends who have helped him a lot.
B.
He has a debt in his friends who have helped him a lot.
C.
He has a debt for his friends who have helped him a lot.
D.
He has a debt with his friends who have helped him a lot.
【单选题】在劳动力市场中,卖方垄断的存在将导致()
【多选题】对于机会的分析,通常从下述哪些方面着手? ( )
【单选题】朋友帮了他很多忙,他欠他们的情。
A.
He has a debt to his friends who have helped him a lot.
B.
He has his friends to a debt which have helped him a lot.
C.
He has a debt to his friends what have helped him a lot.
D.
He have his friends to a debt which have helped him a lot.
【简答题】设函数 连续 , 交换积分次序 (1) (2) (3) (4)
【单选题】根据《反垄断法》的规定,下列各项中,不属于行政性垄断行为的是( ):
A.
行政机关强制本地区、本部门的企业合并,或者通过经营者控制组建企业集团
B.
行政机关妨碍商品和服务在地区之间自由流通的行为
C.
经营者通过合并、委托经营、联营等方式,集合经营者经济实力,提高市场地位的行为
D.
行政机关强制经营者通过协议等方式进行固定价格、划分市场、联合抵制等
【单选题】三面投影体系中,OX轴表示物体的( )度
【单选题】放射免疫分析的创建者和创建时间 ( )
E.
Emgrall和Perlmann于1971年创建