一位中学生沿教学大楼的楼梯匀速登高了3m，该学生登楼做的功最接近于： [ ]
A.1500 J
B.150 J
C.15 J
D.1.5 J
答案：A
In relation to the formation of a contract explain:
(a) the meaning of an offer; (5 marks)
驾驶机动车遇到这种情况要靠右侧停车等待。
