Does ruby cover the full text?

[murata2makoto]

3.3.1.1 Indicating the Pronunciation for Chinese characters 为汉字标注读音 为汉字标注读音
...
Instead, phonetic annotations tend to cover the full text.

In Japan, we typically use "Para ruby". Only some of the CJK ideographic characters are accompanied by ruby.

https://www.w3.org/TR/2012/NOTE-jlreq-20120403/#choice_of_base_characters_to_be_annotated_by_ruby

Can I safely assume that Chinese use "General ruby" for educational purposes and do not use "Para ruby"?

[upsuper]

Others can correct me, but as far as I know, Chinese uses "para ruby" for some level of educational material as well. I believe I have seen that kind of usage in my elementary school textbooks (although I don't have any right now).

[realfish]

Technically, the para-ruby's usage scenarios should be more than the general-ruby's. At least in Chinese mainland, the general-ruby (annotating every Han character) is only applied in some materials for specific educational purposes and so on.

[bobbytung]

Para-ruby used for high grade's textbook in Taiwan as well. Here's example:
https://s.yimg.com/sw/prod/akp/n/AB00290291/o/20131102163423.jpg

[murata2makoto]

Thank you so much.