一、选择题
1.设集合A={-2,-1,0,1,2},B=x|0≤x<52,则A∩B=()
(A){0,1,2}.(B){-2,-1,0}.
(C){0,1}.(D){1,2}.
2.同理科第2题.
3.若z=1+i,则|iz+3|=()
(A)45.(B)42.(C)25.(D)22.
4(试读)...