Theincreasingcomplexitiesofmicrosurgery,lasertechnology,arthroscopyandwhoknowswhatnextdemandunderstandingandcompetenceintechniquesthatrequireeducationallysoundtrainingforthefutureorthopae-dist.句子主干还有成分.

Question

The increasing complexities of microsurgery,
laser technology,arthroscopy and who knows what next demand understanding and competence in techniques that require educationally sound training for the future orthopae-dist.
句子主干还有成分.

Answer 1

主句主语：The increasing complexities of microsurgery, laser technology, arthroscopy and who knows what next
主句谓语：demand
主句宾语：understanding and competence in techniques that require educationally sound training for the future orthopae-dist.其中 that require educationally sound training for the future orthopae-dist 是修饰 techniques 的定语从句.