下列化学方程式中，书写正确的是 A．2P + 5O2 P2O5 B．2H2O ＝

搜查时，不应有被搜查的家属、邻居在场。( )

SB2200型MRB圆盘拉伸机主电机功率是（）KW

A.100

B.200

C.300

下列有关0.1mol/L的Na₂CO₃溶液的说法正确的是（　　）

A．1 L水中溶解了0.1 mol Na₂CO₃

B．1 L溶液中含有10.6 g Na₂CO₃

C．将10.6 g Na₂CO₃溶于1 L水配成的溶液

D．1 L溶液中含有0.2 mol Na⁺

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 steeling your credit （）details, birth records and other （） information.

Spyware and other forms of malware are the biggest online threat to your computer's （） nowadays.

A. reliability

B. security

C. capability

D. efficiency

使用“剪切”和“粘贴”命令在两个文档之间移动文本时，必须同时打开这两个Word文档。( )