下列哪个不是iOS主要的层次()
A: Core OS
B: Core Services
C: Cocoa Touch
D: HEAD
A: Core OS
B: Core Services
C: Cocoa Touch
D: HEAD
D
举一反三
- iOS框架层次大体分为四个层次，其中包括Core OS层、Core Services层、Media层、Cocoa Touch层。
- 陀螺仪和加速计的使用通过哪个框架实现（ ）。 A: Core Data B: Core Image C: Core Motion D: Core Location
- 下列哪个不是中国人开发的手机系统（） A: 火狐OS B: 阿里云OS C: windows-phone D: IOS
- Which of these services facilitates the function of the value chain but is not considered a core element of the supply chain?（）
- is the cash generated from the _____of the business.( ) A: core investing B: borrowing C: core operations D: core financing
内容
- 0
The lowest layer of Android architecture, Linux kernel (version 2.6), provides core system services, such as_____.
- 1
The core cost can be classified into several headings？( ) A: research and development B: Other options are correct C: Management D: support services
- 2
5.7 Core value mainly refers to the patented technologies of a company or a team that can provide corresponding services to customers. ( )
- 3
In the core concept of exemplification, core concept, examples serves as _______ and _______.
- 4
以下命令中,能用来删除当前目录及其子目录下名为'core'的文件的命令是( )。 A: find . -name core -exec rm ; B: find . -name core -exec rm {} \; C: find . -name core -exec rm {} -; D: find . -name core -exec rm {} ;