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【单选题】
假定有一个10人构成的微信群，设个人价值均为v，试计算群的集体价值。
A.
9v
B.
10v
C.
90v
D.
100v
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参考答案：
举一反三
【单选题】对于单样本设计的定量资料不满足参数检验的条件时，进行假设检验应选用（）。
A.
秩和检验
B.
方差分析
C.
t检验
D.
X 2 检验
E.
McNemar检验
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【单选题】There is a kind of immune cell above the basal cell layer, which has the ability of phagocytosis and processing and transmitting antigen of contact allergy, called:
A.
  Langerhans' cell
B.
  Keratinocyte
C.
  Melanocyte
D.
  Merkel cell
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【单选题】An individual nerve cell usually has a large cell body and a __________ nucleus.
A.
cohesive
B.
immature
C.
conscientious
D.
conspicuous
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【单选题】The cell that has the strong phagocytosis is( )
A.
macrophage
B.
fibroblast
C.
plasma cell
D.
mast cell
E.
mesenchymal cell
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【单选题】Crystal CsCl has simple cubic unit cell，in one cell there is(are)(    )
A.
2 Cs + and 2 Cl -
B.
one Cs + and one Cl -
C.
4 Cs + and 4 Cl -
D.
8 Cs + and 8 Cl -
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【单选题】Which cell has the ability to differentiate?
A.
hepatocyte
B.
myocardiocyte
C.
renal cell
D.
embryonic cell
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【单选题】The cell membrane has ___________ to recognize other cells
A.
cell surface markers
B.
hairs
C.
nanochips
D.
transport proteins
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【单选题】某医师用甲、乙两种疗法治疗金葡菌肺炎,甲疗法治疗35人治愈28人,乙疗法治疗39人治愈34人。进行统计学处理时,宜选用的假设检验是
A.
F检验
B.
t检验
C.
配对资料的x2检验
D.
四格表x2检验
E.
行*列表x2检验
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【简答题】某化学实验小组在进行有关CO 2 的实验时用到了下列装置． （1）用A装置检验CO 2 ，试剂X为______；可观察到的现象是______；反应的化学方程式______．若用该装置吸收CO 2 时，试剂X最好选用______． （2）如图B所示，挤压胶头滴管，将NaOH溶液挤入瓶中振荡，可看到气球逐渐鼓起，其原因是______． （3）某同学认为上述实验还不能证明CO 2 和NaOH发生了化学反...
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【简答题】Young Japanese people are evolving a new lifestyle for the 21st century based on the cell phones that few are now able to live without. While about one-third of Japanese primary school students aged 7...
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相关题目：
【单选题】对于单样本设计的定量资料不满足参数检验的条件时，进行假设检验应选用（）。
A.
秩和检验
B.
方差分析
C.
t检验
D.
X 2 检验
E.
McNemar检验
查看完整题目与答案
【单选题】There is a kind of immune cell above the basal cell layer, which has the ability of phagocytosis and processing and transmitting antigen of contact allergy, called:
A.
  Langerhans' cell
B.
  Keratinocyte
C.
  Melanocyte
D.
  Merkel cell
查看完整题目与答案
【单选题】An individual nerve cell usually has a large cell body and a __________ nucleus.
A.
cohesive
B.
immature
C.
conscientious
D.
conspicuous
查看完整题目与答案
【单选题】The cell that has the strong phagocytosis is( )
A.
macrophage
B.
fibroblast
C.
plasma cell
D.
mast cell
E.
mesenchymal cell
查看完整题目与答案
【单选题】Crystal CsCl has simple cubic unit cell，in one cell there is(are)(    )
A.
2 Cs + and 2 Cl -
B.
one Cs + and one Cl -
C.
4 Cs + and 4 Cl -
D.
8 Cs + and 8 Cl -
查看完整题目与答案
【单选题】Which cell has the ability to differentiate?
A.
hepatocyte
B.
myocardiocyte
C.
renal cell
D.
embryonic cell
查看完整题目与答案
【单选题】The cell membrane has ___________ to recognize other cells
A.
cell surface markers
B.
hairs
C.
nanochips
D.
transport proteins
查看完整题目与答案
【单选题】某医师用甲、乙两种疗法治疗金葡菌肺炎,甲疗法治疗35人治愈28人,乙疗法治疗39人治愈34人。进行统计学处理时,宜选用的假设检验是
A.
F检验
B.
t检验
C.
配对资料的x2检验
D.
四格表x2检验
E.
行*列表x2检验
查看完整题目与答案
【简答题】某化学实验小组在进行有关CO 2 的实验时用到了下列装置． （1）用A装置检验CO 2 ，试剂X为______；可观察到的现象是______；反应的化学方程式______．若用该装置吸收CO 2 时，试剂X最好选用______． （2）如图B所示，挤压胶头滴管，将NaOH溶液挤入瓶中振荡，可看到气球逐渐鼓起，其原因是______． （3）某同学认为上述实验还不能证明CO 2 和NaOH发生了化学反...
查看完整题目与答案
【简答题】Young Japanese people are evolving a new lifestyle for the 21st century based on the cell phones that few are now able to live without. While about one-third of Japanese primary school students aged 7...
查看完整题目与答案
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