Gaokao Math Practice Question
2. (5 分) 若复数 $z$ 满足 $(3-4 i) z=|4+3 i|$, 则 $z$ 的虚部为（ ）
- A.-4
- B.$-\frac{4}{5}$
- C.4
- D.$\frac{4}{5}$
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