若函数y=f(x)的值域是[1,3],则函数F(x)=1-2f(x+3)的值域是[ ]
A.[-5,-1]
B.[-2,0]
C.[-6,-2]
D.[1,3]
答案:A
—How often do you watch TV?
—Maybe ______. You know, we're students in Grade 3, so we don't have much time. [ ]
A. in the evening
B. for twenty minutes
C. once a week
咽旁脓肿在颈外触诊较易摸到波动感。()