How many keywords are recommended? A: 3-6 keywords. B: 5-10 keywords. C: 2-5 keywords. D: 6-10 keywords.

​How many keywords are recommended? ‌ A: 3-6 keywords. B: 5-10 keywords. C: 2-5 keywords. D: 6-10 keywords.

You may choose ______ as keywords.

网页的META标签是指（） A: title、h1、keywords B: description、alt、keywords C: robots、keywords、description D: keywords、description、h2

People should avoid using words or terms in the title as keywords.

Which one is the proper writing of the keywords:______ A: Keywords: English, vocabulary, tendency B: keywords: Collocation Context Connotation C: keywords: mass media D: keywords: nuclear waste, nuclear fuel cycle, remediation, bioremediation, citrobacter, heavy metal accumulation, uranium transuranic elements, technetium, tributyl phosphate

In Access, you can only create duplicate indexes for primary keywords.

网页的META标签是指（） A: Atitle、h1、keywords B: Bdescription、alt、keywords C: Crobots、keywords、description D: Dkeywords、description、h2

When you write the title of products, you can pile up keywords.

Keywords关键字词