现有的加密体制分为两种,即公钥体制和( )。
A.非对称加密体制
B.双钥加密体制
C.对称加密体制
D.RSA体制
参考答案:C
—Do you often play_______ football with your friends?
—No, I don’t like sports. I often play______ piano in my free time.
A. a, the B. the, / C. /, the
几种法律文书的适用说明。