单项选择题
A.1g B.0.1g C.1mg D.0.1mg
A.溶剂型橡胶胶粘剂 B.溶剂型聚氨酯类胶粘剂 C.水基型聚氨酯类胶粘剂 D.水基型橡胶类胶粘剂
A.0.02 B.5 C.1 D.0.2