A、There is much room for information in it. B、It holds information for about 15 to 20 seconds. C、It holds information almost ind

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问题

选项 A、There is much room for information in it.
B、It holds information for about 15 to 20 seconds.
C、It holds information almost indefinitely.
D、It maintains information for about 25 to 30 seconds.

答案B

解析
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