外研版（三起）（2012）小学英语五年级下册Module 9 Unit 1 We laughed a lot.Module 9 Unit 1 We laughed a lot.教案(7)

A stack-based environment will result in a dangling reference when the procedure is exited if a local variable in a procedure can be returned to the caller The simplest example:

The memory of a typical computer: A register area; Addressable Random access memory (RAM): A code area; A data area. The code area is fixed prior to execution, and can be visualized as follows:

外研版（三起）（2012）小学英语五年级下册Module 9 Unit 1 We laughed a lot.Module 9 Unit 1 We laughed a lot.教案(6)

A bottom-up parser uses an explicit stack to perform a parse – The parsing stack contains tokens, nonterminals as well as some extra state information – The stack is empty at the beginning of a bottom-up parse, and will contain the start symbol at the end of a successful parse

Broadcast Routing Route a packet from a source to all nodes in the network Possible solutions: Flooding: Each node sends packet on all outgoing links Discard packets received a second time Spanning Tree Routing: Send packet along a tree that includes all of the nodes in the network

I'm often asked how to be a good manager, a topic I've taken on in this column more than once. Less often does anybody ask an equally important question: What makes a good employee? Here are 10 of the qualities I find in the \best and brightest\ employees, the people companies should attract and retain

随着微机的发展，其应用越来越广泛。目前微机不仅应用于 生产管理、办公室自动化、数据处理、通信、网络等方面，已愈 来愈多地进行实时控制和实时数据处理，即用于控制和检测生产 过程中的各种参数，已达到控制整个生产过程的目的。 生产过程中的各种参数大部分是连续变化的模拟量，需要转 换成离散的数字量（ 通过A/D转换 ）才能输入到计算机进行处 理；而计算机处理后的数据为数字量，需经过D/A转换变成模拟 量输出，从而实现对被控对象的控制

外研版（三起）（2012）小学英语五年级下册Module 9 Unit 1 We laughed a lot.Module 9 Unit 1 We laughed a lot.教案(5)

外研版（三起）（2012）小学英语五年级下册Module 9 Unit 1 We laughed a lot.Module 9 Unit 1 We laughed a lot.教案(4)