answer:The most popular operating system in China is Android.

answer:On PCs, the most popular operating system in China is Microsoft Windows.

answer:Whether Astra Linux is better than Windows or not depends on individual preferences and requirements. Astra Linux is a secure and robust operating system based on Linux, primarily designed for use in Russian government organizations. It provides strong security features, but it may have limitations in terms of software compatibility and user-friendliness compared to Windows. Windows, on the other hand, is a widely-used operating system with a large user base and excellent software compatibility. It offers a user-friendly interface and a wide range of software and applications. Windows is also continuously updated and supported by Microsoft. The choice between Astra Linux and Windows ultimately depends on your specific needs, technical expertise, and compatibility requirements. It is advisable to assess the features, compatibility, and support of both operating systems before making a decision.

answer:The given code initializes a list named "temperature" with 4 elements: 36.6, 37.2, 36.5, and 36.8. The next line of code, print(temperature[4]), attempts to print the value of the element at index 4 from the "temperature" list. However, it will throw an "IndexError" because the indexing of a list starts from 0. In this case, the list has a length of 4, so the valid indexes are 0, 1, 2, and 3. There is no element at index 4. Therefore, the code will raise an error.