It is possible for human to go 40 or more hours without sleep and still be able to (i)_____ information acquired at the beginning of the sleepless period. Thus, when we are considering a role for sleep in human memory consolidation, we are referring to a possible role in the (ii)_____ encoding of information and optimizing of recall, not a (iii)_____ of sleep for recalling events of the prior day.
答案：C,D,G