If you don't want to see the columns on the next page, black out the parts that don't need columns, enter the menu/format/column, and select the number of columns as 1.
Question 2: Please refer to question 1.
After entering all the texts, select some texts that need to be divided into columns. From the menu: Format/Column, select "Left, 2 Columns" in the column window, adjust the number of blank rows and adjust the position.
Question 3:
If there is no special symbol set, you can only use drawing tools.
Question 4: Use drawing tools.
Computer expert, that's for sure.
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Remarks: If claw machi