A:have time
B:having time
C:to have time
D:to having time
若x,y∈R,i为虚数单位,且x+y+(x-y)i=3-i,则复数x+yi在复平面内所对应的点在( )
凭你的生活经验,下列表述不正确的是( )
Stand up, Amy. How many birds?- Eight birds.