59.（ ）

(单选题)The earth is a planet bathed in light; it is therefore unsur (单选题)Since the propensity to migrate has persisted in every epoch (单选题)There was so much extraneous material in the argument, ideas (单选题)Lacking the time to examine the treatise in its entirety, th (单选题)It is this tightly circumscribed choice of scene that gives (单选题)Relatively few politicians willingly forsake center stage, a (单选题)It may be useful to think of character in fiction as a funct (单选题)There are a number of theories to explain these events and, (单选题)Many species of intertidal fish have developed homing abilit (单选题)Any numerical description of the development of the human po