执行下列程序段以后，内存变量Y的值是( )。 x=76543 y=0 DO

Read and write. (根据汉语意思，写出对应的英语短语)   

1. 一张生日表格                               

2. 我的家人                                  

3. 我妈妈的生日                               

4. 在四月                                    

采购双方通过谈判对采购产品的相关内容和要求进行反复（），达成协议，建立采购关系。

A.讨论

B.磋商

C.交谈

D.商讨

学龄儿童一日三餐中，早餐和午餐的营养素供给量应分别达到（）

A.全天推荐量的35％、40％

B.全天推荐量的30％、40％

C.全天推荐量的25％、35％

D.全天推荐量的30％、45％

E.全天推荐量的25％、45％

使用荧光磁粉的一个优点是（）。

A、需要的设备少

B、检验速度快

C、成本低

D、容易被吸附

The (71) is a general description of the architecture of a workflow management system used by the WFMC, in which the main components and the associated interfaces are summarized. The workflow enactment service is the heart of a workflow system which consists of several (72) . In a workflow system, a process is specified using the process definition tool. Usually, processes are defined in terms of a (73) , which consists of (74) indicated using a circle, and (75) shown as a rectangle. These two components can be linked by means of a directed arc.

（72）处填（）。

A．tasks

B．processes

C．workflow threads

D．workflow engines