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【单选题】
已知一时期数列有30年的数据 , 采用移动平均法测定原时间数列的长期趋势 , 若采用5年移动平均 , 后的时间数列有多少年的数据( )。
A.
30
B.
28
C.
26
D.
25
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【单选题】社会主义初级阶段的基本经济制度是公有制为主体、多种所有制经济共同发展。必须毫不动摇地鼓励、支持和引导非公有制经济发展的依据在( )
A.
社会主义初级阶段的生产力发展水平和发展的不平衡性
B.
社会主义市场经济体制决定
C.
社会主义初级阶段的基本经济制度决定
D.
社会主义初级阶段的分配制度决定
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【单选题】加速时间设定参数是 ( )
A.
Pr.7
B.
Pr.8
C.
Pr.9
D.
Pr.19
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【单选题】Thymus is important for the maturation of:
A.
B-lymphocytes
B.
T-lympho cytes
C.
neutrophils
D.
macrophages
E.
basophils
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【简答题】成熟(maturation)
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【判断题】在上升趋势中,我们可以把窗口看作买进的参考点,乘市场回撤到这里时入市。
A.
正确
B.
错误
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【单选题】点动频率设定参数为 ( )
A.
Pr.4
B.
Pr.15
C.
Pr.16
D.
Pr.79
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【多选题】Which of the following statementsmabout oogenesis (oocyte maturation) are correct?
A.
During prenatal maturation, the ova are formed in the ovary from cells called oogonia which proliferate by mitotic division. All of the oogonia enlarge to form primary oocytes, of which about 2 million are present at birth. No primary oocytes form after birth (in contrast to the continuous production of primary spermatocytes in the male after puberty). Primary oocytes begin the first meiotic division before birth but do not complete prophase until after puberty.
B.
During postnatal maturation, the primary oocytes stay dormant in the ovaries until puberty. The primary oocyte increases in size and a membrane, the zona pellucida, forms around it as the follicle matures. Just before ovulation, the primary oocyte completes the first meiotic division, but unlike its male counterpart, the division of cytoplasm is unequal.
C.
At ovulation, the nucleus of the secondary oocyte begins the second meiotic division progressing only to metaphase, then division arrests. If fertilization occurs, the second meiotic division is completed, and the mature oocyte retains most of the cytoplasm, whereas the second polar body is small & degenerates. Only about 200-400 of primary oocytes ever reach full maturity after puberty and are expelled at ovulation during the female's reproductive life.
D.
Every menstrual cycle corresponds to the maturation of an oocyte, which becomes an ovum through division, yielding cells of unequal size (oocytes and polar bodies). There are 2 kinds of normal sperm, with respect to sex chromosomes: 23,X and 23,Y; there is but 1 kind of normal oocyte: 23,X (refers to 23 chromosomes in the complement, made up of 22 autosomes and 1 sex chromosome, X or Y).
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【简答题】成熟(maturation)
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【单选题】We may infer from the authors designing of the study that natural maturation with age might______.
A.
affect the accuracy of the scoring of the tests
B.
lower the score of the tests
C.
be a factor to be ignored in the testing
D.
be the dominant variable in the tests
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【单选题】社会主义初级阶段的基本经济制度是公有制为主体、多种所有制经济共同发展。必须毫不动摇地鼓励、支持和引导非公有制经济发展的依据在于
A.
社会主义初级阶段的生产力发展水平和发展的不平衡性
B.
社会主义市场经济体制决定
C.
社会主义初级阶段的基本经济制度决定
D.
社会主义初级阶段的分配制度决定
查看完整题目与答案
相关题目：
【单选题】社会主义初级阶段的基本经济制度是公有制为主体、多种所有制经济共同发展。必须毫不动摇地鼓励、支持和引导非公有制经济发展的依据在( )
A.
社会主义初级阶段的生产力发展水平和发展的不平衡性
B.
社会主义市场经济体制决定
C.
社会主义初级阶段的基本经济制度决定
D.
社会主义初级阶段的分配制度决定
查看完整题目与答案
【单选题】加速时间设定参数是 ( )
A.
Pr.7
B.
Pr.8
C.
Pr.9
D.
Pr.19
查看完整题目与答案
【单选题】Thymus is important for the maturation of:
A.
B-lymphocytes
B.
T-lympho cytes
C.
neutrophils
D.
macrophages
E.
basophils
查看完整题目与答案
【简答题】成熟(maturation)
查看完整题目与答案
【判断题】在上升趋势中,我们可以把窗口看作买进的参考点,乘市场回撤到这里时入市。
A.
正确
B.
错误
查看完整题目与答案
【单选题】点动频率设定参数为 ( )
A.
Pr.4
B.
Pr.15
C.
Pr.16
D.
Pr.79
查看完整题目与答案
【多选题】Which of the following statementsmabout oogenesis (oocyte maturation) are correct?
A.
During prenatal maturation, the ova are formed in the ovary from cells called oogonia which proliferate by mitotic division. All of the oogonia enlarge to form primary oocytes, of which about 2 million are present at birth. No primary oocytes form after birth (in contrast to the continuous production of primary spermatocytes in the male after puberty). Primary oocytes begin the first meiotic division before birth but do not complete prophase until after puberty.
B.
During postnatal maturation, the primary oocytes stay dormant in the ovaries until puberty. The primary oocyte increases in size and a membrane, the zona pellucida, forms around it as the follicle matures. Just before ovulation, the primary oocyte completes the first meiotic division, but unlike its male counterpart, the division of cytoplasm is unequal.
C.
At ovulation, the nucleus of the secondary oocyte begins the second meiotic division progressing only to metaphase, then division arrests. If fertilization occurs, the second meiotic division is completed, and the mature oocyte retains most of the cytoplasm, whereas the second polar body is small & degenerates. Only about 200-400 of primary oocytes ever reach full maturity after puberty and are expelled at ovulation during the female's reproductive life.
D.
Every menstrual cycle corresponds to the maturation of an oocyte, which becomes an ovum through division, yielding cells of unequal size (oocytes and polar bodies). There are 2 kinds of normal sperm, with respect to sex chromosomes: 23,X and 23,Y; there is but 1 kind of normal oocyte: 23,X (refers to 23 chromosomes in the complement, made up of 22 autosomes and 1 sex chromosome, X or Y).
查看完整题目与答案
【简答题】成熟(maturation)
查看完整题目与答案
【单选题】We may infer from the authors designing of the study that natural maturation with age might______.
A.
affect the accuracy of the scoring of the tests
B.
lower the score of the tests
C.
be a factor to be ignored in the testing
D.
be the dominant variable in the tests
查看完整题目与答案
【单选题】社会主义初级阶段的基本经济制度是公有制为主体、多种所有制经济共同发展。必须毫不动摇地鼓励、支持和引导非公有制经济发展的依据在于
A.
社会主义初级阶段的生产力发展水平和发展的不平衡性
B.
社会主义市场经济体制决定
C.
社会主义初级阶段的基本经济制度决定
D.
社会主义初级阶段的分配制度决定
查看完整题目与答案