题目内容

The passage mainly discusses

A. how to be familiar with a new culture
B. the problems of immigration
C. cultural adjustment
D. how to survive in a second culture

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When the system upon which a transport entity is running fails and subsequently restarts, the （） information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connection can close the connection using a （） timer. This timer measures the time the transport machine will continue to await an （） of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer （）, the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user.In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment. The failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the （） number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination. When the system upon which a transport entity is running fails and subsequently restarts, the （） information of all active connections is lost.

A. data
B. state
C. signal
D. control

软件的维护并不只是修正错误。为了满足用户提出的增加新功能、修改现有功能以及一般性的改进要求和建议，需要进行（），它是软件维护工作的主要部分；软件测试不可能揭露旧系统中所有潜在的错误，所以这些程序在使用过程中还可能发生错误，诊断和更正这些错误的过程称为（）；为了改进软件未来的可维护性或可靠性，或者为了给未来的改进提供更好的基础而对软件进行修改，这类活动称为（）。软件测试不可能揭露旧系统中所有潜在的错误，所以这些程序在使用过程中还可能发生错误，诊断和更正这些错误的过程称为（）。

A. 完善性维护
B. 适应性维护
C. 预防性维护
D. 改正性维护

审计、税务、证券监管、人民银行、保险监管部门，按照规定的职责权限，可以对单位的( )实施监督检查。

A. 会计资料
B. 销售资料
C. 人事资料
D. 会计人员

在电子化交易情况下，证券交易的基本过程不包括( )。

A. 开户
B. 委托
C. 转让
D. 结算