突起路标经抗冲击试验后，以冲击点为圆心，半径（）的圆外不得有任何形式的破坏。
参考答案：12mm
—Where are you going for your holiday? —Well, we ______ yet. [ ]
A. haven't decided
B. hadn't decided
C. don't decide
D. didn't decide
泼水节是我国哪个少数民族的传统节日[ ]
A、彝族
B、傣族
C、壮族
D、高山族
