与西方中世纪的发展历程相比，中国古代社会政治、经济和文化高度吻合所产生的问题不包括（

Spyware and other forms of malware are the biggest online threat to your computer’s（）nowadays. These malicious（）which get to your PC through freeware, shareware, commercial sites, deceptive pop-ups or in any other way, can record your surfing habits and sites you visit, share your personal information with their partners. Any personal（）, when in wrong hands, can leave you a victim of an "identity theft" by stealing your credit（）details, birth records and other（）information.

These malicious（）which get to your PC through freeware.

A．hardware

B．cards

C．programs

D．equipment

Several Chinese films are rising to international fame, _____, Brokeback Mountain directed by Ang Lee has won the Oscar Awards.

A．such as

B．for example

C．namely

D．that is

矿石硬度的表示方法有（）种。

A．1

B．2

C．3

磨机中研磨体的三种运动状态泻落式、（）、圆周式。

TB/T2340—2000标准中对钢轨探伤仪衰减器应达到的指标是怎样规定的？