称算法的时间复杂度为O(f(n)),其含义是指算法的执行时间和______的数量级相同。
参考答案:f(n)
Either you or one of your students _______to attend the meeting that will be held tomorrow.
A. are
B.is
C.have
D. be
A.交
B.连接
C.笛卡儿积
D.自然连接