当除数是最大一位数时，余数最大是（ ）。
8
All Chinese people were very _____ at the _____ news happened on May 12th, 2008. [ ]
A. frustrated; frustrated
B. frustrated; frustrating
C. frustrating; frustrating
计算机系统安全级别最高级是（）
A.A级
B.B级
C.C级
D.D级
