进口业务的程序包括（）。
A、开立信用证
B、报关
C、商检
D、索赔
参考答案：A, B, C, D
It is ______ any wonder that his friend doesn’t like watching television much.
A．no
B．such
C．nearly
D．hardly
液压系统检修中应注意哪些事项？
