段3：①Anders Ericsson, a 58-year-old psychology professor at Florida State University, says he believes strongly in “none of the above.” ②Ericsson grew up in Sweden, and studied nuclear engineering until he realized he would have more opportunity to conduct his own research if he switched to psychology. ③His first experiment, nearly 30 years ago, involved memory: training a person to hear and then repeat a random series of numbers. ④ “With the first subject, after about 20 hours of training, his digit span had risen from 7 to 20,” Ericsson recalls. ⑤“He kept improving, and after about 200 hours of training he had risen to over 80 numbers.”
段4：①This success, coupled with later research showing that memory itself is not genetically determined, led Ericsson to conclude that the act of memorizing is more of a cognitive exercise than an intuitive one. ②In other words, whatever inborn differences two people may exhibit in their abilities to memorize, those differences are swamped by how well each person “encodes” the information. ③And the best way to learn how to encode information meaningfully, Ericsson determined, was a process known as deliberate practice. ④Deliberate practice entails more than simply repeating a task. ⑤Rather, it involves setting specific goals, obtaining immediate feedback and concentrating as much on technique as on outcome.
段5：①Ericsson and his colleagues have thus taken to studying expert performers in a wide range of pursuits, including soccer. ②They gather all the data they can, not just performance statistics and biographical details but also the results of their own laboratory experiments with high achievers. ③Their work makes a rather startling assertion: the trait we commonly call talent is highly overrated. ④Or, put another way, expert performers—whether in memory or surgery, ballet or computer programming—are nearly always made, not born.
23.According to Ericsson, good memory
[A] depends on meaningful processing of information.
[B] results from intuitive rather than cognitive exercises.
[C] is determined by genetic rather than psychological factors.
[D] requires immediate feedback and a high degree of concentration.
答案：A
问：根据原文中的哪几句话可以得出23题的正确答案？（多选题）
A : 段3句⑤
B : 段4句①
C : 段4句②
D : 段4句③
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