用于抗心律失常的药物是（）。A.普罗布考 B.普罗帕酮 C.普诺地嗪 D.普鲁卡因

招标投标法律体系构成中，（）通常以部委令的形式公布，一般使用办法、规定等名称。

A.行政法规

B.国务院部门规章

C.法律

D.行政规范性文件

Hypervama Holdings Ltd runs a food supermarket, called Hypervama Supermarket, in Maseru. It employed Mr Smith as a buying manager of Hypervama. He was specifically told at any time he wished to order goods exceeding R20,000, he must obtain a signed purchase order from the finance director of the company. The finance director is his immediate boss. While the finance director was away overseas and inaccessible, Mr Smith ordered butter worth R100,000 from the Butter Company, because the stock of butter was running low, New Year was approaching and he wanted to avoid the New Year rush. He thought it would certainly impress his boss.The lorry carrying butter broke down on the way and by the time it was repaired, all the butter had melted. After the lorry was repaired, the boxes containing the butter were duly delivered to Hypervama. Mr Smith accepted the delivery and signed the delivery note without examining the contents of the boxes. However, when the boxes were opened, the butter was found to be unfit for human consumption and had to be thrown away.When the finance director came to know that Mr Smith ordered the butter worth R100,000 without his prior authorisation, he refused to pay the Butter Company saying that Mr Smith should pay the amount out of his own pocket.Required:In the context of the law of agency, advise Hypervama and the Butter Company. (10 marks)

某域名服务器netl23.rzone配置如下： 8.12.128.in-addr,arpa in soa sparcl1.netl23.com root.sparcl1.neta.com (0001.00 ；Serial number 10800 ；Refresh [3 hours] 3600 ；Retry [1 hour] 432000 ；Expire [5 daRys] 86400 ；Minimum [1 day] ) in ns sparcl1.netl23.com ；primary in ns sparc22.netl23.com ；secondary 11 in ptr sparcl1.netl23.com 22 in ptr sparc22.netl23.com 33 in ptr mail.netl23.com 44 in ptr www.netl23.com 仔细阅读配置文件，然后回答下列问题：

″in ns″的作用是什么

EI32-JD型计算机联锁系统当联锁机检查到自己出现非危险性故障后，立即查询另一套联锁机的工作状态，当另一套联锁机处于（）状态时，则本机停止工作，重新启动。

A、主机

B、备机

C、维修机

D、操作机

斜巷跑车防护装置的作用是什么？