以下是四种加密算法，其中（）不是公钥加密算法。
A.RSA
B.Elgamal
C.DES
D.Knapsack
参考答案：C
A．8m/s，向右传播
B．8m/s，向左传播
C．24m/s，向右传播
D．24m/s，向左传播
This is Wei Hua's dress. ______ , please. [ ]
A. give it to her
B. give them to her
C. give it here
D. give here it.
