(22)是目前常用的数字签名算法。
A.RSA
B.DES
C.DSA
D.EDI
参考答案:A
中国游泳赛事有()、()、全国冠军赛、()等。
The cargo must be shipped directly to China,that is.( )is not allowed.
A.partial shipment
B.transshipment
C.through shipment
D.total shipment