3.I unexpectedly______ him on the street yesterday evening.A .ran after B.ran through C.ran to D ,ran into请分析考点及解题思路
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复数计算：（1）i+i^2+i^3+.+i^100（2）i^10+i^20+i^30+.+i^80(3)i*i^2*i^3*.*i^100(4)i*i^3*i^5*.*i^99(5)[(1+i)/(1-i)])[(1+i)/(1-i)]^2)[(1+i)/(1-i)]^3.)[(1+i)/(1-i)]^100
用学过的英语单词填空.1.( )i( ) 2.( )i( ) 3.( )i( )( ) 4.( )i( )( ) 5.( )i( )( )( ) 6.( )i( )( )( ) 7.( )i( )( )( )( )8.( )i( )( )( )( )
3.I suppose?
虚数 计算i.i^3.i^5.i^2011当中是乘号，不是加号，OK？
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