Remember that ______ is better than cure, so brush your teeth at least twice a day and visit your dentist for regular check-ups.
A:priority
B:privilege
C:principle
D:prevention
某花圃所种的花卉缺乏氮和钾元素,如果只可施用一种化肥,应施的是( )
读“珠江—西江经济带图”(如图),完成下题。
①提高企业最低工资标准 ②上调失业保险金发放标准
③完善生产要素按贡献参与分配的制度 ④个人薪金所得实行超额累进税率