题目内容
(请给出正确答案)
[单选题]
HTML5的正确doctype是?()
A.<!DOCTYPE HTML>
B.<!DOCTYPE HTML 5>
C.<!DOCTYPE>
D.<DOCTYPE HTML5>
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A.<!DOCTYPE HTML>
B.<!DOCTYPE HTML 5>
C.<!DOCTYPE>
D.<DOCTYPE HTML5>
A.autocomplete属性
B.autofocus属性
C.multiple属性
D.required属性