21. In scientific inquiry1 it becomes a matter of duty to expose a ----hypothesis to every possible kind of----.
tentative.. examination
debatable.. approximation
well-established.. rationalization
logical.. elaboration
suspect.. correlation2
22. Charlotte Salomon's biography is a reminder3 that the currents of private life, however perted, dislodged, or twisted by ----public events, retain their hold on the----recording them.
transitory.. culture
dramatic.. majority
overpowering.. inpidual
conventional.. audience
relentless4.. institution
23. Philosophical5 problems arise when people ask questions that, though very----, have certain characteristics in common.
relevant
elementary
abstract
perse
controversial
24. Not all the indicators6 necessary to convey the effect of depth in a picture work simultaneously7, the picture's illusion of----three-dimensional appearance must therefore result from the viewer's integration8 of various indicators perceived----.
imitative.. coincidentally
uniform.. successively
temporary.. comprehensively
expressive9.. sympathetically
schematic.. passively
答案：CACBE CCDBB BBDBE EBCAD ACDB
