搜题请搜索小程序“爱下问搜题”
问题 填空题

如图所示是小张设计的物理探究小实验．当突然弹出硬纸片时，鸡蛋将掉进杯中．这是因为鸡蛋原来是静止的，当突然弹出硬纸板时，鸡蛋由于_____还要保持静止状态．

答案

惯性

单项选择题

储量为15立方米的甲、乙类液体储罐与二类高层民用建筑的防火间距不应小于()米。

A．20

B．25

C．30

D．35
查看答案
单项选择题

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.

birth records and other（）information.

A．public

B．confidential

C．open

D．commercial
查看答案