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

对下呼吸道的错误描述是（）

A.以骨、软骨、肌肉、结缔组织和黏膜构成

B.其软骨为"C"字形的软骨环

C.管腔衬以黏膜，表面覆盖有纤毛上皮

D.黏膜具有黏附吸入气体中灰尘颗粒的功能

E.纤毛具有净化吸入的气体的功能