超文本標(biāo)記語(yǔ)言(HTML)單項(xiàng)選擇題每日一練(2020.05.08)

A.a1+a2=30
B.a1+a2=1020
C.a1+a2=a1+a2
D.顯示錯(cuò)誤

A.<ul><li>...</ul> 
B.<li><ul>...</li> 
C.<ol><li>...</ol> 
D.<li><ol>...<li>

A.<frameset frameborder=yes> 
B.<frame frameborder=yes> 
C.<frame border=yes> 
D.<frameset border=yes>

A.〈form〉〈/form〉
B.〈select multiple name="NAME" size=?〉〈/select〉
C.〈option〉
D.〈select name="NAME"〉〈/select〉

A.<tbody> ... </tbody> 
B.<tfoot> ... </tfoot> 
C.<thead> ... </thead> 
D.<caption> ... </caption>