卡片式登记的优点是容易保存，适宜按事件顺序进行登记。()

The schoolmaster looked at the broken glass on the floor then looked at the boy and said to him, “You () the window.”

A、shouldn’t break
B、mustn’t break
C、can’t have broken
D、shouldn’t have broken

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归档文件的编号是指编制归档文件目录。() 点击查看答案&解析