( )是指通过某种方式对网络进行管理,使网络能正常高效地运行。
参考答案:网络管理
在实际操作中,组页眉和组页脚根据需要可以______。
--- Is it true that Mike refused an offer from Yale University yesterday?
--- Yeah, but I have no idea _______ he did it; that’s one of his favorite universities.
A.when
B.why
C.that
D.how