多项选择题

以密码算法对明文的处理方式为标准，可以将密码系统分为（）和（）。

A.分组密码
B.序列密码
C.单钥密码
D.公钥密码

你可能感兴趣的试题

单项选择题

The next medical revolution will change that, because genetic engineering has the potential to conquer cancer, grow new blood vessels in the heart, block the growth of blood vessels in tumors, create new organs from stem cells and perhaps even reset the primeval genetic coding that causes cells to age.According to the lexical features of EST, which is originally common word but used as technical word here and pay attention to its meaning.

A．genetic engineering, blood vessels, organ
B．stem cells, genetic coding
C．reset, heart, tumors
D．age

劳动力的价值包含( )。
A、维持劳动者本人生存所必需的生活资料的价值
B、维持劳动者家属的生存所必需的生活资料的价值
C、劳动者接受教育和训练所支出的费用
D、劳动者实现自由全面发展所需要的费用

答案：维持劳动者本人生存所必需的生活资料的价值#维持劳动者家属的生存所必需的生活资料的价值#劳动者接受教育和训练所支出的费用