资产负债表的格式，国际上通常有（）。

单项选择题控制方式不包括（）。

单项选择题7. The prologue and epilogue refers to _____, according to the text. A、the introduction and the end of a play or poem B、something that happens at the beginning and the end of a series of events C、the birth and the death of a person D、the opening and closing remarks