This plan comes from _____ Warning Alert and Response Network Act, _____ 2006 federal law that requires
improvement to the nation's emergency alert system. [ ]
A. a; the
B. the; the
C. the; a
D. /; a
答案:C
This plan comes from _____ Warning Alert and Response Network Act, _____ 2006 federal law that requires
improvement to the nation's emergency alert system. [ ]
A. a; the
B. the; the
C. the; a
D. /; a
答案:C