His father likes keeping dogs and        .

A．his mother likes so

B．so his mother

C．so his mother does

D．so does his mother

辅酶类药物，可制成注射剂的类型是

A．溶液型注射剂
B．溶胶型注射剂
C．混悬型注射剂
D．注射用无菌粉末
E．乳剂型注射剂