成煤过程必须经过()作用阶段。
A、泥炭化
B、腐化
C、丝炭化
D、煤化
参考答案:A, D
In relation to the Company Law of China:
(a) state the conditions to be met for a shareholder of a limited liability company to transfer his equity to a party other than the shareholders of this company; and (6 marks)
A.手拿1个鸡蛋的力大约0.5N
B.一名中学生游泳时所受浮力约为50N
C.中学生站立时对地面压强约为500Pa
D.大气对我们手掌的压力约为50N