下面程序执行结果为：
1×1=1
2×1=2 2×2=4
3×1=3 3×2=6 3×3=9
……
9×1=9 9×2=18 9×3=27 9×4=36 9×5=45 9×6=54 9×7=63 9×8=72 9×9=81
请在每条横线处填写一个语句，使程序的功能完整。
注意：请勿改动main()主方法和其他已有的语句内容，仅在横线处填入适当的语句。
public class ForLoopStatement
public static void main(String args[])
int m,n;
for(m=1; m＜10; ______)
______
System.out.print(m+"*"+n+"="+m*n+" ");
______

In a public-key cryptosystem, (71) encrypted with the public key can only be deciphered with the private key from the same (72) . Conversely, (71) encrypted with the private key can be decrypted only with the public key. Users can make their public keys (73) available or place them at a key distribution center or others to access. However, the private key must be (74) safe. In public-key systems there’s no (75) to find a safe channel for communicating a shared secret key.

（72）是（）

A.length

B.pair

C.size

D.space