【C8】A．levelsB．experimentsC．standardsD．opinions

回答（57）题 查看材料A.resultsB.experimentsC.ideasD.sugg

【C4】A．levelsB．testsC．coursesD．works

【C3】A．questionB．answersC．standardsD．rules

【C2】A．knowledgeB．informationC．conscienceD．opinion

【C3】A．objectsB．experimentsC．goalsD．subjects

A.evidenceB.indicatorC.advantageD.opinion