题目

---Is there _____ milk at home?---_____. We must get some from the shop.   A. any; None    B. some; Nothing         C. any; Nothing        D. anything; Nothing 答案：A 实数x分别取什么值时，复数z＝x2＋x－6＋(x2－2x－15)i表示的点：(1)在实轴上？(2)在虚轴上？