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
假如你是李明的母亲,请根据对话内容完成电话留言。(3分)
A: Hello. I’d like to speak to Li Ming.
B: Sorry. He isn’t in right now.
A: Oh. Can I leave a message?
B: Sure, go ahead.
A: This is Zhang Han speaking. Please tell him not to forget to take his camera tomorrow.
B: OK. Zhang Han . I’ll give him the message myself.
A: Thanks. Goodbye.
B: Bye.
从地理环境整体性分析,下列现象与我国南方景观不符的是
A.气候干旱,降水少
B.化学风化为主,物理风化较弱
C.植被茂密高大
D.流水侵蚀显著,风力侵蚀微弱