9K.P. Popper. Conjectures and Refutations[M]. Londan: Routledge and Kegan Paul, 1969,30.
10F. Abd - El - Khalick, N.G. Lederman, R. L. Bell, R. S. Schwartz. View of Nature of Science Questionnaire(VNOS) : Toward Valid and Meaningful Assessment of Learners' Conceptions of Nature of Science[ J]. Journal of Research in Science 'reaching. 2002, 39(6) : 497 -521.