按国际惯例，在合同中不作规定时，运输标志的提供方一般是( )。
A．开证行 B．卖方 C．买方 D．船方
参考答案：B
His parents ______ in the country, but now they live in the city. [ ]
A. used to live
B. used to living
C. were used to live
D. are used to living
幕墙工程验收时应检查建筑设计单位对幕墙工程设计的确认文件。
