Certainty 发表于 2025-3-26 21:23:33
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G. Trillò,G. Berlotaningful if its truth or falsity is open to observational testing. What distinguishes Ayer’s contribution is not its philosophical originality but its startlingly clear and punchy articulation of logical positivism in English prose of strikingly precise and concise elegance. One of the more obvious令人苦恼 发表于 2025-3-27 08:54:24
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Pharmacovigilance for Herbal and Traditional Medicines978-3-031-07275-8COMMA 发表于 2025-3-27 13:44:45
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Physics for ultrasonic diagnosis,20,000 Hertz (cycles per second) but the upper limit decreases with age. Middle-C on the piano is a note caused by vibrations of the piano string 262 times per second (262 Hz). This frequency of vibration is usually called the fundamental carrier . on which some higher frequencies (harmonies) may be