在UNIX 系统中是否设置了专门用来删除文件的系统调用?为什么?

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问题:

在UNIX 系统中是否设置了专门用来删除文件的系统调用?为什么?

考点:计算机操作系统计算机操作系统题库
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When the Rivers Company filed its corporate tax returns for the first quarter of the current year, it owed a total of $ 6.7 million in corporate taxes. Rivers paid $ 4.4 million of the tax bill, but still owes $ 2.3 million; it also received $ 478000 in the second quarter as a down payment towards $ 942000 in custom-built products to be delivered in the third quarter. Its financial accounts for the second quarter most likely show the $ 2.3 million and the $ 478000 as $ 2.3 million $ 478000.()

A. Income tax payable unearned revenue.

B. Income tax payable accrued revenue.

C. Deferred tax liability unearned revenue.

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在急救现场如有少量肠管脱出,采取 ()

A.送回腹腔

B.消毒单包裹

C.用清洁碗覆盖保护包扎

D.消毒后送回腹腔

E.用消毒碗覆盖保护包扎

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社会工作者小周利用地区发展模式开展社区工作,鼓励居民表达意见,协助居民组织起来,帮助建立良好的沟通渠道与人际关系,小周扮演的角色是( )。

A.教育者
B.技术专家
C.中介者
D.使能者

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具有清热生津、除烦止呕功效的药物是()

A.石膏

B.知母

C.芦根

D.黄连

E.天花粉

题型:问答题 简答题

一项工程甲、乙合作用30天完成,现甲独作24天,乙加入合作,10天后甲调走,乙独作17天完工,则甲独作需()天完工。

A.90

B.80

C.70

D.60

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