题干
一 I'm ________ to speak in front of many people.
— Don't worry, John. You can do it.
A：happy
B：nervous
C：excited
答案(点此获取答案解析）
B
一 I'm ________ to speak in front of many people.
— Don't worry, John. You can do it.
A：happy
B：nervous
C：excited
，下列关于二者所含官能团的说法正确的是( )
活动调节的叙述中，正确的是