季铵盐类
A.酒精B.石炭酸C.安息香酸D.度米芬E.PP粉
参考答案:D
Most of us think of sharks as dangerous, owing to lack of information rather than fear.
A.due to
B.because
C.as
D.for
如图所示,保存图形时,说法不正确的是()
A.密码不区分大小写
B.选择“加密图形特性”复选框后,则在windows资源管理器无法查看相应的信息
C.加密字符最多128个字符
D.高级选项中,可以选择密钥长度