1. [单选题]根据下面的文字资料回答 63～67 题In low-speed network，it is usually adequate to wait for congestion to occur and
A. In high-speed
B. networks，this approach oftenworks poorly，because in the（ 1 ）between sending the
C. notification and notification arriving at the source，thousands of
D. In ATM network，a major tool for
E. when a host wants a new virtual（ 5 ），it must
G. 第63题：文中（ 1 ）处正确的答案是（ ）。
H. interval
I. time
J. slot
K. delay
2. [单选题]通过互联网从事违反国家有关法律、法规的活动，侵害国家、社会或他人利益的违法行为是()。
A. 计算机攻击
B. 计算机防护
C. 计算机危害
D. 计算机犯罪
