肽链能被肽酶降解,至于哪一个肽键被断裂则决定于肽酶的类型。肽酶P能断裂带有侧链基团R4的氨基酸和相邻氨基酸的羧基之间的肽键。下列说法正确的是
I want to take part in after﹣class activities.
So do I. I think these activities can make us feel _________.( )
relax
relaxing
relaxed
__________ I take photos here?
No, you mustn't. Don't you see the sign "NO PHOTOS"?( )
Would
May
Must
What do you want to be when you grow up, a doctor or an engineer?
___________. I want to be a scientist( )
Neither
Either
Both
I have seen the film The Jurassic WorldⅡ《侏罗纪世界Ⅱ》.It' s very interesting.
Really? When ______ you ________ it?( )
have, seen
did , see
will, see
Alice, which season do you like best?
Autumn. The fallen _______ are like a thick blanket on the ground. What beautiful scenery it is!( )
leaf
leafs
leaves