题目

City College Union Inc Secretary/Typist The Union is a student-run organization with a permanent staff of 20. Typing speed: at least 60 wpm. The ability to rake shorthand dictation and a working knowledge of filling procedures are essential requirements. The basic salary for the position is $ 18,500 per year. Enquires to R. Barbar 387-5075. Emu Airline Secretary Emu Airline is now offering a part-time position for a secretary. The position offers at least 20 hour’ work a week, with a view to full-time work in the future. Monthly salary is about $ 1,400. Phone 899-3264 for an appointment一元二次方程（x-1）2=2的解是（ ）A．x1=-1-，x2=-1+B．x1=1-，x2=1+C．x1=3，x2=-1D．x1=1，x2=-3