下列重载为非成员函数的运算符函数原型中，错误的____（）
A. Fraction operator -（Fraction）
B. Fraction& operator =（Fraction&, Fraction）
C. Fraction& operator +=（Fraction&, Fraction）
D. Fraction operator +（Fraction, Fraction）
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Which of the following items is related to the Complementary and Alternative Medicine（）
A. Yoga
B. Spiritual guidance
C. Massage therapy
D. Acupuncture
Which one is false among the following statements for BSN program in China（）
A. Students who have graduated from junior high schools are eligible for the BSN program in China
B. The program is offered by universities
C. The program can be full-time and part-time
D. Nurses with associate degrees can apply for the program
Among following diseases, which belongs to NCDs（）
Asthsma
B. Ebola
Coronary heart disease
Depression
She had been at the company for 10 years and knew all the ___（）
A. ins and outs
B. up and down
C. on and off
D. back and forth
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