_________ she milk cows last Sunday?[ ]
A. Did
B. Does
C. Do
答案：A
Children are taught to respect everyone, ________ race, sex or age.[ ]
A. in terms of
B. in face of
C. regardless of
D. in place of
“三网合一”的三网是指（）。
A．电信网、广播电视网、互联网
B．物联网、广播电视网、电信网
C．物联网、广播电视网、互联网
D．物联网、电信网、互联网
