焦油加工的主要任务是获得酚、萘、蒽等纯产品和()等粗产品。
参考答案:洗油沥青
乳剂特点的表述错误的是()
A.乳剂液滴的分散度大
B.乳剂中药物吸收快
C.乳剂的生物利用度高
D.一般W/O型乳剂专供静脉注射用
E.静脉注射乳剂注射后分布较快,有靶向性
Not all ads are used to promote a product or to increase a company’s profits. Which is the following statement correct?
A.All the ads are used to promote a product or to increase a company’s profits.
B.Neither of ads are used to promote a product or to increase a company’s profits.
C.Some of ads are used to promote a product or to increase a company’s profits.
D.None of ads are used to promote a product or to increase a company’s profits.