33, 45, and 78 RPM is the speed at which the most common commercially available vinyl records spin at represented in revolutions per minute. The records themselves are often referred to by their speed. As an example, a 7” single featuring a single song is often referred to simply as “a 45”, or a shellac disc is often called a “78”.

One, in particular, has to do with three numbers: 33, 45, and 78. These numbers refer to the rate at which the record spins on the record player, measured in revolutions per minute (rpm). Most high-quality lp players & record players will come equipped to turn at …

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2024年1月11日 · Each record size, be it the 33, 45, or 78 RPM, has its unique characteristics and advantages. The 33 RPM, for instance, offers long play, making it ideal for albums. The 45 RPM, with its shorter playtime, is perfect for singles, while the 78 RPM, being the oldest of the bunch, has a charm that appeals to vintage collectors.

Vinyl records typically come in three speeds: 33, 45 and 78 rotations per minute (RPM). If you're like most record lovers you've probably flipped speeds from time to time in order to hear your music faster or slower than normal. It's a funny little experiment, but what are there three different speeds to begin with?

①识题型：本题为分组数列 ②析题干： 先将题干进行分组（1，11），（23，33），（45，55），（67，（ ））， 11-1=10,33-23=101,55-45=10，发现括号内部后项-前项=10， 则有？-67=10，？

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2010年5月19日 · 题目： A、B两人玩猜字游戏，游戏规则如下： A选定 一个 [1,100]之间的 数字 背对B写在纸上，然后让B开始猜； 如果B猜的偏小，A会提示B这次猜的偏小； 一旦B某次猜的偏大，A就不再提示，此次之后B猜的偏小A也不会再提示，只回答猜对与否。 请问：B至少要猜（ ）次才能保证猜对？ 在这种策略下，B第一次猜测的 数字 是（ ）。 解析： 假设至少要猜x次。 第一次猜的数. @ [TOC]目录 JAVA面试、 笔试题 @目录 一、 CoreJava部分 7 1. java中有哪些 …

1、计算器可进行加（+）、减（-）、乘（×）、除（÷）等简单算术计算； 2、还可以进行根号开方（√）、圆周率（π）、倒数（1/x）正弦（Sin)余弦（COS）等复杂数学公式计算。

我们注意到11,33,55这个规律,有一个固定差值22,从这我们也可以看出这个问题的本质,就是22的分配问题,先分为10,12,后分为12,10.由此我们就可以排除10,12,12循环的可能,那么最后结果为65