9；78；156；12
In relation to employment law, discuss the protection of employees against unfair discrimination. (10 marks)
起重机吊着2吨的货物，下列哪种情况，钢丝绳对货物的拉力最大[ ]
A．货物停在空中时
B．货物匀速上升时
C．货物匀速下降时
D．货物加速上升时
