已知复数z满足iz-1=3，则复数z的虚部为 ______．_爱下问搜题

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问题填空题

已知复数z满足

i

z-1

=3，则复数z的虚部为 ______．

答案

∵复数z满足

i

z-1

=3，∴复数z=1+

i

3

，则复数z的虚部为

1

3

，

故答案为：

1

3

．

选择题

—Your spoken English is much better.

—Thank you. My teacher often asks us _______English as ______as possible.[ ]

A. to speak; many

B. not to speak; much

C. to speak; much

D. not to speak; more

填空题

高、低压加热器装设（）疏水阀，可远方操作并可根据水位（）开启。