【单选题】CSS3中设置列数的属性()。
A. columns
B. column-count
C. column-gap
D. column-rule
A. columns
B. column-count
C. column-gap
D. column-rule
举一反三
- 以下内容正确的是（ ）。 A: CSS3中设置列数的属性columns B: CSS3中设置列数的属性column-count C: CSS3中设置列数的属性column-gap D: CSS3中设置列数的属性column-rule
- Which one of the followings columns has the highest column efficiency? A: packed column B: WCOT column C: SCOT column D: PLOT column
- 在网格布局中，设置列数的属性是（） A: column B: columnCount C: layout_columnCount D: stretchColumns
- 【多选题】能修改列的数据类型指令是 A. ALTER TABLE ... ALTER COLUMN B. ALTER TABLE ... MODIFY COLUMN... C. ALTER TABLE ... CHANGE COLUMN ... D. ALTER TABLE ... UPFATE
- Let A be a [img=40x20]1803c4e60908a8b.png[/img]matrix, and the determinant of A is 0,then _________. A: there must be a column of elements in A that are all 0 B: there must be a column in A that is a linear combination of the other column vectors C: there must be two columns that are proportional to each other D: any column vector in A is a linear combination of the remaining column vectors