[计算题]某企业2011年11月30日银行存款日记账余额304万元，银行对账单余额297.4万元。经逐笔核对，发现有以下来达账项：（1）企业开出一张支票0.4万元购买办公用品，企业已登记入账，但银行尚未登记入账；（2）企业将销售商品收到的转账支票10万元存入银行，企业已登记入账，但银行尚未登记入账；（3）银行受托代企业支付水电费1万元，银行已经登记入账，但企业尚未收到付款通知单、未登记入账；（4）银行已收到外地汇入货款4万元登记入账，但企业尚未收到收款通知单、未登记入账。要求：根据上述资料，填制该企业2011年11月30日的银行存款余额调节表。

The de facto standard application program interface （API）for TCP/IP applications is the "sockets" interface. Although this API was developed for （1）in the early 1980s. it has also been implemented on a wide variety of non-Unix systems. TCP/IP（2） written using the sockets API have in the past enjoyed a high degree of portability and we would like the same（3） with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 （4）, new address conversion functions, and some new socket options. These extensions are designed to provide Access to the basic IPv6 features required by TCP and UDP applications, including multicasting, while introducing a minimum of change into the system and providing complete （5）for existing IPv4 applications.

（1）是（）

A.Windows

B.Linux

C.Unix

D.DoS