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【多选题】
关于重铬酸钾法下列说法正确的是()
A.
反应中Cr2O7-被还原为Cr3+,基本单元为K2Cr2O7
B.
K2Cr2O7易制得纯品,可用直接法配制成标准滴定溶液
C.
K2Cr2O7可作为自身指示剂(Cr2O72-橙色,Cr3+绿色)
D.
反应可在盐酸介质中进行,CL-无干扰
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举一反三
【单选题】在公示催告期间,转让票据权利的行为
A.
有效
B.
部分有效
C.
无效
D.
部分无效
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【单选题】在word 2010文档中插入公式,应选择"插入 " 选项卡_____ 组中"公式 " 按钮。
A.
文本
B.
插图
C.
图文框
D.
符号
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【简答题】指出下列运算电路是什么运算电路。图(a)是( )电路,图(b)是( )电路,图(c)是( )电路。(填反相比例,同相比例,反相加法,同相加法,加减法)
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【多选题】Which of the following sequences are belonged to promoter ( )
A.
TATA box
B.
TTCCT sequence
C.
CAAT box
D.
GC box
E.
AAUAAA
查看完整题目与答案
【单选题】在Word 2010中,在"插入"选项卡"插图"选项组中,单击"形状"按钮并在弹出的列表中单击"矩形"按钮,则按下______键的同时并拖动鼠标,可以画出正方形。
A.
Ctrl
B.
Alt
C.
Shift
D.
Tab
查看完整题目与答案
【单选题】在Word 2010 文档中插入公式, 应选择"插入"选项卡的"_____ "组中的"公式"按钮。
A.
文本
B.
插图
C.
图文框
D.
符号
查看完整题目与答案
【单选题】Which of the following is not in connection with DSC calling sequences?
A.
ACK.BQ
B.
ACK.RQ
C.
ARQ
D.
EOS
查看完整题目与答案
【单选题】In some bacterial and many eukaryotic genes, coding sequences are interrupted at intervals by regions of noncoding sequences which are called ______.
A.
enhancers
B.
exons
C.
introns
D.
promoters
查看完整题目与答案
【单选题】Which of the following DNA sequences do NOT belong to tandemly repeated DNA sequences?
A.
satellite DNA
B.
telomeric DNA
C.
minisatellite DNA
D.
microsatellite DNA
E.
Alu repeats
查看完整题目与答案
【单选题】Which of the following sequences is right for the writing stages?
A.
developing ideas— working out the order(oragnizing ideas) —drafting— editing— proofreading—— re-drafting
B.
working out the order(oragnizing ideas)—developing ideas—drafting— editing— proofreading—— re-drafting
C.
working out the order(oragnizing ideas)—developing ideas—drafting—  re-drafting—editing— proofreading—— re-drafting
D.
developing ideas— working out the order(oragnizing ideas)——proofreading —drafting— editing— re-drafting
查看完整题目与答案
相关题目：
【单选题】在公示催告期间,转让票据权利的行为
A.
有效
B.
部分有效
C.
无效
D.
部分无效
查看完整题目与答案
【单选题】在word 2010文档中插入公式,应选择"插入 " 选项卡_____ 组中"公式 " 按钮。
A.
文本
B.
插图
C.
图文框
D.
符号
查看完整题目与答案
【简答题】指出下列运算电路是什么运算电路。图(a)是( )电路,图(b)是( )电路,图(c)是( )电路。(填反相比例,同相比例,反相加法,同相加法,加减法)
查看完整题目与答案
【多选题】Which of the following sequences are belonged to promoter ( )
A.
TATA box
B.
TTCCT sequence
C.
CAAT box
D.
GC box
E.
AAUAAA
查看完整题目与答案
【单选题】在Word 2010中,在"插入"选项卡"插图"选项组中,单击"形状"按钮并在弹出的列表中单击"矩形"按钮,则按下______键的同时并拖动鼠标,可以画出正方形。
A.
Ctrl
B.
Alt
C.
Shift
D.
Tab
查看完整题目与答案
【单选题】在Word 2010 文档中插入公式, 应选择"插入"选项卡的"_____ "组中的"公式"按钮。
A.
文本
B.
插图
C.
图文框
D.
符号
查看完整题目与答案
【单选题】Which of the following is not in connection with DSC calling sequences?
A.
ACK.BQ
B.
ACK.RQ
C.
ARQ
D.
EOS
查看完整题目与答案
【单选题】In some bacterial and many eukaryotic genes, coding sequences are interrupted at intervals by regions of noncoding sequences which are called ______.
A.
enhancers
B.
exons
C.
introns
D.
promoters
查看完整题目与答案
【单选题】Which of the following DNA sequences do NOT belong to tandemly repeated DNA sequences?
A.
satellite DNA
B.
telomeric DNA
C.
minisatellite DNA
D.
microsatellite DNA
E.
Alu repeats
查看完整题目与答案
【单选题】Which of the following sequences is right for the writing stages?
A.
developing ideas— working out the order(oragnizing ideas) —drafting— editing— proofreading—— re-drafting
B.
working out the order(oragnizing ideas)—developing ideas—drafting— editing— proofreading—— re-drafting
C.
working out the order(oragnizing ideas)—developing ideas—drafting—  re-drafting—editing— proofreading—— re-drafting
D.
developing ideas— working out the order(oragnizing ideas)——proofreading —drafting— editing— re-drafting
查看完整题目与答案