数据结构分为线性结构和非线性结构，带链的队列属于______。

仅作为取穴定位标志的腧穴是（）。

A.乳中

B.神阙

C.膻中

D.攒竹

E.鸠尾

招标文件应当明确规定允许的( )，并注明该条款是否为重要商务条款。

A．投标货币

B．报价方式

C．选择性报价

D．选择性事项

E．具有附加条件的报价

Joseph is a self-employed accountant who works from his home. Since he has to deal with sensitive accounts, he decided to install a security alarm system. He entered into a contract with Security Ltd to install the alarm system in his house. Joseph was asked to read, fill in and sign a form to confirm the order. The form contained a statement that ‘Security Ltd accepts no liability whatsoever for any injury or loss sustained as a consequence of the wrongful installation or operation of any equipment supplied or fitted by it.’ Joseph did not read that notice but filled in and signed the form to confirm his order.The installation of Joseph’s security system was carried out incorrectly. During the first night, it short-circuited and caused a fire which destroyed Joseph’s house. Security Ltd admits negligence but is refusing to compensate Joseph for the losses sustained, relying on the exclusion clause.Required:Advise Joseph whether the exemption clause exempts Security Ltd from losses suffered by Joseph. (10 marks)

刀架定位机构要求定位精度高、重复定位精度高、定位刚度好，经常采用（）。

A.圆锥销定位

B.圆柱销定位

C.端面齿盘定位

对于初步审定的商标，任何人均可以提出异议。提出异议的期限及受理机构是自国家商标局作出初步审定公告之日起（）

A.一个月内向商标局提出

B.三个月内向商标局提出

C.六个月内向商标评审委员会提出

D.十二个月内向商标评审委员会提出