A:had been made
B:was made
C:has been made
D:would be made
James has just arrived, but I didn't know he until yesterday.
下列亚洲的河流,注入北冰洋的是( )
如图,矩形ABCD中,AD=2AB,E、F分别是AD、BC上的点,且线段EF过矩形对角线AC的中点O,且EF⊥AC,PF∥AC,则EF:PE的值是____
I can tell by your ____ ____ that you are satisfied with the decision.
如图,某电信公司提供了两种方案的移动通。费用y(元)与通话时间x(元)之间的关系,则以下说法错误的是( )