GRE Text Completion: ETS Official Practice 150-GRE OP150:填空 - XAW477Y15A71JG_0O

Although cosmic objects have struck Earth since the planet's very formation, humanity has only recently become aware of these events: two centuries ago the idea that objects orbiting the Sun could collide with Earth was widely ____________. A. ridiculed B. doubted C. disseminated D. promulgated E. marginalized F. disbelieved