I often help my parents _____ Saturday. [ ]
A. in
B. at
C. on
答案:C
说明脱轨表示器的显示方式?
依据《捕捉、猎捕国家重点保护野生动物资源保护管理费收费标准》捕捉、猎捕紫貂、虎、梅花鹿、黑熊、丹顶鹤分别应罚款多少钱(元/只)?