AAC triangle mining machine risk

1.

AAC has three meanings, specifically as follows:

1, AAC: Advanced Audio Coding

AAC, full name advanced audio coding, is a file compression format specially designed for sound data. Different from MP3, it uses a new algorithm for encoding, which is more efficient. Using AAC format can make people feel that the sound quality does not significantly rece the premise, more compact. Apple iPod and Nokia mobile phones support AAC format audio files

AAC: extended and alternative communication system, abbreviated as ACC, can help people with speech or language barriers to communicate

AAC: average annual cost, or ACC for short, expresses the average cost of using equipment every year. The calculation formula is as follows:

AAC = (P-R) (A / P, I, n) + R * I + k

extended data:

the advantages and disadvantages of advanced audio coding (AAC)

1, advantages

compared with MP3, AAC has better sound quality, The files are smaller

AAC is a lossy compression format. Compared with the popular ape, FLAC and other lossless formats, there is a "essential" gap in sound quality. In addition, the faster transmission speed of USB3.0 and large capacity MP3 above 16g are accelerating the popularization, which also makes the "small" aura on AAC head no longer exist

2. Triangle miner bought one, not very feeling, I'm going to buy another star bit hummingbird H1

3. This is the 3x (3x) and the (4x) is the 4x (3x) and the (4x) is the 2x (4x) and the (4x) is the 2x (2x) and the 2 = 225 x = 3, a = 3, a = 3, a = 3, a = 3, a = 3, and the (3) a = 30, a = 30, a = 2, B C = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4, B = 4 B = 4 B = 4 B = 4 B = 4, B = 4 B = 4, B = 4 B = 4, B = 4 B = 4 B = 4 B = 4, B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 B = 4 = 4 B = 4, B = 4 = 4 = 4 = 4 B = 4 = 4 B = 4 = 4 = 4 B = 4 B = 4 = 4 = 4 = 4 B = 4 B = 4 B 681 3

4. ?? 32467; 322421222; .
? u//> 证 / / / / / / u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u/ u_/ u57;∠B=2∠C,∠AEB=∠C+∠EAC,
∴∠C+∠EAC=2∠C,
∴∠C=∠EAC,
∴AE=CE=AB,
∴CD=AB+BD.

5. Connect nq.qm and BN and cross to S.
it is easy to know that ∠ aqn = ∠ bqn = 45,
so ∠ bqn = 90 = ∠ MQA,
AQ: QN = QM: QB,
then AQ: QN = QM: QB,
∽ QAM ∽ QNB,
∽ AMQ = NBq,
then ∠ PSM = ∠ QSB,
∽ according to the sum of triangle inner angles equal to 180,
MPs = ∠ BQS,
∽ BQS = 45,
∴∠BPM=∠MPS=∠BQS=45 °,
that is, BQS equals 45 °.
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