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【简答题】
下列试剂和酶常用于蛋白质化学的研究中:CNBr、异硫氰酸苯酯、酰氯、脲、 6mol/L HCl、β-巯基乙醇、水合茚三酮、过甲酸、胰蛋白酶、胰凝乳蛋白酶。其中哪 一个最适合完成以下各项任务? (1)测定小肽的氨基酸序列。 (2)鉴定肽的氨基末端残基。 (3)不含二硫键的蛋白质的可逆变性;如有二硫键存在需加什么试剂? (4)在芳香族氨基酸残基羧基侧水解肽键。 (4)在蛋氨酸残基羧基侧水解肽键。 (5)在赖氨酸和精氨酸残基羧基侧水解肽键。
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反馈参考答案：
举一反三
【单选题】This is the village where the hero was born and .
A.
grown up
B.
raising
C.
brought up
D.
growing up
【简答题】斜二测图的轴间角为
【单选题】—When were you born? —I was born ______ the morning of May 7 th , 1995.
A.
in
B.
on
C.
at
D.
of
【单选题】—When were you born? —I was born ________ the morning of February 25 th ,1997.
A.
to
B.
on
C.
in
D.
at
【多选题】下列做法不正确的有( )。
A.
从本单位的现金收入中直接支付现金
B.
用不符合财务制度的凭证顶替库存现金
C.
单位之间相互调剂现金
D.
私营企业将企业收入的现金以个人名义存入储蓄
【单选题】—When were you born? —I was born _________.
A.
on July 10th, 2000
B.
in July 10th, 2000
C.
in 2000, July 10th
D.
on 2000, July 10 th
相关题目：
【单选题】—When were you born? —I was born ______ the morning of May 7 th , 1995.
A.
in
B.
on
C.
at
D.
of
参考解析：
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