水平视平面与画面的交线应该称为______。
A．视平线
B．地平线
C．主垂线
D．主点
参考答案：A
(b) Part 1 of the Malaysian Code on Corporate Governance provides for broad principles of corporate governance. State THREE principles stated in the Code, relevant to directors. (6 marks)
时显、时不显引起原因是什么？
