如果结果不匹配，请 
更多“I'mWuYifan.I'ma__（）”相关的问题
第3题
对虚数单位i,有（）
A.i⁴ⁿ=1，n∈Z
B.i⁴ⁿ⁺¹=i，n∈Z
C.i⁴ⁿ⁺²=-1，n∈Z
D.iⁿ+iⁿ⁺¹+iⁿ⁺²+Iⁿ⁺³=0，n∈Z
E.iⁿiⁿ⁺¹iⁿ⁺²Iⁿ⁺³=1，n∈Z
F.i⁴ⁿ⁺³=-i，n∈Z
第4题
______ I'd have told you.A．If I would have known itB．If I had have known itC．Had I known i
______ I'd have told you.
A．If I would have known it
B．If I had have known it
C．Had I known it
D．Should I known it
