政府收支分类科目中,收入分为()
A、类
B、类、款
C、类、款、项
D、类、款、项、目
参考答案:D
Where are the speakers now [A] In a factory, [B] In the classroom. [C] In a shop.
α-氰基丙烯酸酯胶黏剂的组成