问题
单项选择题
一个复数（）e等于把其逆时针旋转φ度。
A.加上
B.减去
C.乘以
D.除以
答案
参考答案：C
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一个复数（）e等于把其逆时针旋转φ度。
A.加上
B.减去
C.乘以
D.除以
参考答案：C
| 完形填空。 | |||
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