Please take the medicine three times a day,__it won't work well.A_英语解答

Please take the medicine three times a day,__it won't work well.
A:and B:but C:or D:so

人气：105 ℃　时间：2020-02-06 00:35:51

解答

C,否则的意思.意思是请每天吃三次药,否则就不会有效