Sharp angle miner

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. 1. The zoo is opposite the planetarium. There is no need to take a bus<

2, planetarium to science and Technology Museum bus:

option 1: [transfer once] (click to check the picture)
first take 632 (no.5-qinghe Xiaoying Bridge West) and get on at zoo station, then get off at Mingguang bridge north station; Finally, transfer to 387 (Beijing West Station - east entrance of Huizhong Road), get on at mingguangqiao north station, and get off at China Science and Technology Museum Station; The whole journey is about 9.5 km
option 2: [transfer once] (click to look up the picture)
first take 362 (Xierqi station Ximen of urban rail) to get on at zoo station and get off at Ximen Station; Finally, transfer to 387 (Beijing West Station - east entrance of Huizhong Road), get on at Ximen South Station, and get off at China Science and Technology Museum Station; It's about 8.5km
option 3: [transfer once] (click to look up the picture)
first take 347 (Badachu Xinjiekou gap) and get on at zoo station, then get off at yutaoyuan station; Finally, transfer to 387 (Beijing West Railway Station East of Huizhong Road), get on at suojiafen station and get off at China Science and Technology Museum Station; The whole journey is about 8.1 km
option 4: [transfer once] (click to check the picture)
first take 27 (West Diaoyutai outside Andingmen) to get on at the zoo station and get off at yutaoyuan station; Finally, transfer to 387 (Beijing West Railway Station East of Huizhong Road), get on at suojiafen station and get off at China Science and Technology Museum Station; The whole journey is about 8.1 km
option 5: [transfer once] (click to check the picture)
first take 360 (Xiangshan Ximen) to get on at the zoo station and get off at Ximen Station; Finally, transfer to 387 (Beijing West Station - east entrance of Huizhong Road), get on at Ximen South Station, and get off at China Science and Technology Museum Station; The whole journey is about 8.6 km
option 6: [transfer once] (click to check the picture)
first take 634 (Xiangshan Park East Gate Ximen) to get on at the zoo station and get off at Ximen Station; Finally, transfer to 387 (Beijing West Station - east entrance of Huizhong Road), get on at Ximen South Station, and get off at China Science and Technology Museum Station; The whole journey is about 8.6 km.

3. Because the largest angle in this triangle is 91 degrees, it is an obtuse angle,
so this triangle is an obtuse angle triangle.
so choose: C

4. According to the stem analysis, because the sum of the degrees of the two acute angles of the right triangle is 90 degrees, Pb and PC divide the two acute angles equally,
then the sum of the degrees of ∠ PBC and ∠ PCB is 90 degrees °÷ 2=45 °，< br /> 180 °- forty-five °= one hundred and thirty-five °．
answer: ∠ BPC = 135 degrees.
so the answer is: 135

5. Hehe, the question of selection. When marking, press counterclockwise and click the far end of the corner line to be marked
when labeling, the position of the two lines you selected determines the direction of the vector
also, you can change the size when you drag it
also, if the angle is very small, zoom in and mark again.

6. There are quite a lot of investors. According to the announcement, the cornerstone investment is $1000
there are connected capital, hash capital, achain development fund, consensus technology, Zhu Yingjia, founder of peer capital, Yang Linke, China consultant of bitcoin diamond, Liu Jingchao, co-founder of star capital, Du Yitian, blockchain investor, Huang He, founder of mailtime & MDT, and XingKong Xingchang, etc

7. Beijing, Shanghai, Guangzhou and Chongqing

the jurisdiction of Beijing includes: except for the provinces under the jurisdiction of Shanghai, Guangzhou and Chongqing, all other provinces and autonomous regions of China

the jurisdiction of Shanghai includes: Jiangsu, Shanghai, Zhejiang, Anhui and Jiangxi

the jurisdiction of Guangzhou includes: Guangdong, Fujian, Hainan, Zhejiang, Jiangxi, etc Guangxi

Chongqing includes Chongqing, Sichuan, Yunnan and Guizhou