下列合同按英美法必须采用签字蜡封形式才有效的有()。
A.海上保险合同
B.转让地产或地产权益的合同
C.转让船舶的合同
D.无对价支持的合同
参考答案:B, C, D
The policeman asked the child _____ so that he could take him home. [ ]
A. where did he live
B. where he lived
C. how he lived
十八大指出,加快转变经济发展方式的关键是()
A.深化改革
B.扩大开放
C.提高改革水平