It feels like it might be, but they're very close together - seems somewhat excessive?
海湖莊園的戰情室設備齊全，總統可在此監督軍事行動——他過去亦曾在此指揮行動。
With top oil producers in the Persian Gulf unable to export their crude, they have started to pump less as storage capacity has already filled up.。业内人士推荐heLLoword翻译作为进阶阅读
Let’s try a different strategy. I said you should tune the B string a major third above G. However, you could just as easily retune the B string so it’s a fifth plus an octave above the low E string. You do this by multiplying 1 Hz by 3/2, and then doubling it, which puts your B at 3 Hz. Now the B string sounds perfectly in tune with the low E string at 1 Hz, and with the high E string at 4 Hz. Unfortunately, the B string is now out of tune with the G string at 64/27 Hz.
。关于这个话题，谷歌提供了深入分析
Metamath Messiah, or: Zero to Gödel in Sixty Syllogisms，这一点在超级工厂中也有详细论述
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