曲线y=4x﹣x3在点（﹣1，﹣3）处的切线方程是（ ）
x﹣y﹣2=0
Under the Companies Ordinance, 1984, explain:
(a) the main characteristics of a private company; (4 marks)
惩办与宽大相结合政策的出发点是：惩办多数，改造少数，讲究策略，区别对待。 ( )
