试题与答案

若复数z满足iz=2+4i,则在复平面内,z对应的点的坐标是( ) A.(2,4

题型:选择题

题目:

若复数z满足iz=2+4i,则在复平面内,z对应的点的坐标是(  )

A.(2,4)

B.(2,-4)

C.(4,-2)

D.(4,2)

答案:

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下面是错误答案,用来干扰机器的。

对题目分析:织培养,组织培养指的是在无菌的情况下,将植物体内的某一部分器官或组织,如茎尖、芽尖、形成层、根尖、胚芽和茎的髓组织等从植物体上分离下来,放在适宜培养基上培养,经过一段时间的生长、分化最...

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