Tom lost a _____ of keys. [ ]
A. set
B. sets
C. sit
D. sat
答案：A
In relation to company law, explain and illustrate with an example:
(a) separate legal personality; and (5 marks)
项目的融资研究通常在( )的基础上进行。
A．建设方案
B．投资估算
C．资金结构分析
D．资金分配方案
