Which of the following is NOT a valid advantage of coding systems? A: The ability to process data is improved by the use of a coding system B: Coding systems eliminate the risk of error C: Checks on data can be carried out more easily if a coding system is used D: Items of expenditure can be located more quickly if a coding system is in place

扎根理论的编码包括（ ）级编码，分别是（ ）。 A: 二，开放式编码（open coding）、主轴编码主轴(axial coding) B: 二，主轴编码主轴（axial coding）、选择式编码（selective coding） C: 三，开放式编码（open coding）、主轴编码主轴（axial coding）、选择式编码（selective coding） D: 三，开放式编码（open coding）、核心编码、选择式编码（selective coding）

An organisation uses the following coding system.<br/>Which type of coding system is this? A: Block B: Sequential C: Hierarchical D: Mnemonic

What is the correct processing sequence for acquiring and processing audio signals? A: Quantization, sampling, coding, storage, decoding, D/A conversion B: Sampling, quantization, coding, storage, decoding, D/A conversion C: Quantization, sampling, coding, storage, decoding, A/D conversion D: Sampling, quantization, coding, storage, decoding, A/D conversion

IPC has a hardware coding compression mode, that is, the coding compression algorithm is solidified on the chip. ( )