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明代中医外科学著作是
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皮皮学刷刷变学霸
举一反三
【单选题】_______ do you guess_________ as my birthday gift?
A.
What ; did he buy
B.
Which ;he bought
C.
Which ; did he buy
D.
What ; he bought
【单选题】蛋白质分子能被肽酶降解，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R 4 的氨基酸和相邻氨基酸的羧基基团之间的肽键。下列说法正确的是 [ ]
A.
上图所示肽链肯定由五种氨基酸脱水缩合而成
B.
在肽酶P的作用下，经过脱水可以形成两条肽链
C.
肽酶P可以催化l处的化学键断裂
D.
该肽链中含有游离的氨基和羧基数各1个
【单选题】what did you do_____her request
A.
in need of
B.
in addition to
C.
such as
D.
in replay to
【单选题】What did you do ___her request?
A.
In need of.
B.
in attention to
C.
Such as.
D.
in reply to
【单选题】蛋白质分子能被肽酶降解,至于哪一个肽键断裂则取决于肽酶的类型。肽酶P能断裂带有侧链R 4 的氨基酸和相邻氨基酸的羧基基团之间的肽键。下列说法正确的是( )
A.
上图所示肽链一定由五种氨基酸脱水缩合而成
B.
在肽酶P的作用下,经过脱水缩合可以形成两条肽链
C.
肽酶P可以催化1处的化学键断裂
D.
该肽链中含有游离的氨基和羧基各一个
【多选题】补全对话 Judy: Hello, Tom. What’s your plan for the summer holiday? Tom: I have no idea. __ 21 _____ Judy: I’ll take part in a social activity with my sister. Tom: It sounds exciting. __ 22 _____ Judy: No...
A.
She raised some money for them.
B.
Did you send books to them?
C.
I helped them with their lessons.
D.
What about you?
E.
Is it your first time to join in such activities?
F.
It was a wonderful experience!
【单选题】You haven't forgot what the teacher asked us to do for the homework, _____ ?
A.
didnt you
B.
havent you
C.
did you
D.
have you
【单选题】蛋白质分子能被肽酶降解，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R 4 的氨基酸和相邻氨基酸的氨基基团之间的肽键。下列说法正确的是 [ ]
A.
上图所示肽链肯定由四种氨基酸脱水缩合而成
B.
在肽酶P的作用下，经过脱水可以形成两条肽链
C.
肽酶P可以催化3处的化学键断裂
D.
该肽链中含有氨基和羧基数各1个
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