射频识别（RFID）是物联网的关键技术。RFID标签又称电子标签，关于电子标签与条形码（barcode）标签的叙述，（ ）是正确的。
- A.电子标签建置成本低，多个标签可被同时读取
- B.条形码标签容量小，但难以被复制
- C.电子标签通信距离短，但对环境变化有较高的忍受能力
- D.电子标签容量大，可同时读取多个标签并且难以被复制
正确答案及解析
正确答案
解析
射频标签，也叫电子标签、射频识别。它是一种非接触式的自动识别技术，通过射频信号识别目标对象并获取相关数据。识别工作无须人工干预。作为条形码的无线版本，RFID技术具有条形码所不具备的防水、防磁、耐高温、使用寿命长、读取距离大、标签上数据可以加密、存储数据容量更大、存储信息更改自如、更容易附着在不同的产品上等优点。
包含此试题的试卷
你可能感兴趣的试题
Advancements in （ ）have contributed to the growth of the automotive industry through the creation and evolution of self-driving vehicles.
-
- A.Artificial Intelligence
- B.Cloud Computing
- C.Internet of Things
- D.Big Data
- 查看答案
In project human resource management , （ ）is not a source of power for the project manager.
-
- A.referent power
- B.expert power
- C.reward power
- D.audit power
- 查看答案
At the project establishment stage , the feasibility study mainly includes techinical feasibility analysis , （ ）, operation environment feasibility analysis and other aspects of feasibility analysis.
-
- A.detail feasibility analysis
- B.opportunity analysis
- C.economic feasibility analysis
- D.risk analysis
- 查看答案
（ ）is a grid that shows the project resources assigned to each work package.
-
- A.Stakeholder engagement assessment matrix
- B.Requirements traceability matrix
- C.Probability and impact matrix
- D.Responsibility assignment matrix
- 查看答案
Xinhua News Agency reported in January 2022，Chian will further promote the developmet of a digital economy during the 14th Five-Year Plan eriod（2021-2025）. The plan also emphasized industrial （ ）transformation.
-
- A.digital
- B.networking
- C.intelligentize
- D.informatization
- 查看答案