化学结构中含有2个手性碳原子,具有右旋性的药物
A.利福平B.异烟肼C.利巴韦林D.乙胺丁醇E.克霉唑
参考答案:E
One of my close friends made great progress in her studies so her teachers ____ her, and I _____ her. [ ]
A. were happy with; was happy with
B. were happy for; was happy for
C. were happy with; was happy for
D. were happy for; was happy with
用户分散而制造企业相对集中,自主创新以()为主,消费品特别是耐用消费品制造大都是这种情况。
A.生产者
B.制造企业
C.用户
D.消费者