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【简答题】
有如下复数类的声明,请补充完整。 class complex{ double real; // 实部 double imag;// 虚部 public : complex(double x,double y){ real=x; imag=y; } complex operator +(complex c) {// 重载加法运算符"+" return complex(______); } };
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【简答题】Generally speaking，a business letter should be written in a formal style ______ in a personal one． A) other than B) rather than C) less than D) more than
【多选题】Which of the following statements about verbal styles are true?
A.
Personal style. is the verbal style. that emphasizes the individual identity of the speaker.
B.
Western people often avoid direct fact to please the other parties.
C.
Many Asians use an indirect verbal style.
D.
Americans place importance on boasting about their ability and accomplishment.
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