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【单选题】
What is the difference between a bias and an assumption? Check one option.
A.
A bias is a form of stereotype while an assumption is a type of evidence.
B.
A bias is a type of evidence while an assumption is a form of stereotype.
C.
A bias is a type claim with no evidence and an assumption is a prejudice for or against someone or something.
D.
A bias is a prejudice for or against someone or something and an assumption is a type of claim with no evidence.
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举一反三
【单选题】谷氨酸的Pk1=2.19(a-COOH)、pk2=9.67(a-NH3)、pk3=4.25(g-COOH) ,则谷氨酸的pI=( )。(低阶)
A.
1/2 ( 2.19+9.67 )
B.
1/2 ( 9.67+4.25 )
C.
1/2(2.19+4.25)
D.
1/3(2.17+9.04+9.67)
【单选题】( ) 1 、谷氨酸的 pK1=2.19( a -COOH) 、 pK2=9.67( a -NH 3 ) 、 pK3=4.25( g -COOH) , pI 等于: -
A.
1/2 ( 2.19+9.67 )
B.
1/2 ( 9.67+4.25 )
C.
1/2(2.19+4.25)
D.
1/3(2.17+9.04+9.67)
【单选题】The Ezonexam network administrator has issued the 'VTP password ezonexam' command on a Cisco device. What is the purpose of this command?
A.
It allows two VTP servers to exists in the same domain, each configured with different passwords
B.
It is the password required when promoting a switch from VTP client mode to VTP server mode
C.
It is used to access the VTP server to make changes to the VTP configuration
D.
It is used to validate the sources of VTP advertisements sent between switches
E.
None of the above
【单选题】下列4中静态图像文件在Internet上大量使用的是( )。
A.
SWF
B.
TIF
C.
BMP
D.
JPG
【单选题】( ) 谷氨酸的 pK1=2.19( a -COOH) 、 pK2=9.67( a -NH 3 ) 、 pK3=4.25( g -COOH) , pI 等于:
A.
1/2 ( 2.19+9.67 )
B.
1/2 ( 9.67+4.25 )
C.
1/2(2.19+4.25)
D.
1/3(2.17+9.04+9.67)
【单选题】谷氨酸的Pk1=2.19(a-COOH)、pk2=9.67(a-NH3)、pk3=4.25(g-COOH) pl=( )
A.
1/2*(2.19+9.67)
B.
1/2*(9.67+4.25)
C.
1/2*(2.19+4.25)
D.
1/3*(2.19+4.25+9.67)
【单选题】谷氨酸的Pk1=2.19(-COOH)、pk2=9.67(-NH3)、pk3=4.25(-COOH) pl=
A.
1/2(2.19+9.67)
B.
1/2(9.67+4.25)
C.
1/2(2.19+4.25)
D.
1/3(2.17+9.04+9.67)
【简答题】已知丙氨酸的pK1=2.43(α一COOH)、pK2=9.69(α—NH2);谷氨酸的pK1=2.19(α一COOH)、pK2=9.67(α一NH2)、pKR=4.25(R基团);赖氨酸的pK1=2.18(α—COOH)、pK2=8.95(α一NH2)、pKR=10.53(R基团)。分别计算上述3种氨基酸的等电点。
【单选题】谷氨酸的之pk1=2.19(a-COOH)、pk2=9.67(a-NH3)、pk3=4.25(g-COOH) pl=( )
A.
1/2 ( 2.19+9.67 )
B.
1/2 ( 9.67+4.25 )
C.
1/2(2.19+4.25)
D.
1/3(2.17+9.04+9.67)
【单选题】谷氨酸的Pk1=2.19(a-COOH)、pk2=9.67(a-NH3)、pk3=4.25(g-COOH) ,则谷氨酸的pI=( )。
A.
1/2 ( 2.19+9.67 )
B.
1/2 ( 9.67+4.25 )
C.
1/2(2.19+4.25)
D.
1/3(2.17+9.04+9.67)
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