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【单选题】
在纸层析法中，选择展开剂的原则是使Rf值落在( )。
A.
Rf值＜1.0
B.
0.05＜Rf值＜0.85
C.
Rf值＜0.85
D.
Rf值＞0.05
E.
0.5＜Rf值＜1.0
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参考答案：
举一反三
【单选题】( )位于柱与枋相交处,有加强额枋和减少跨距的作用。
A.
斗拱
B.
雀替
C.
挂落
D.
雕饰
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【简答题】Toni Morrison is considered the best and the most representative of the contemporary African American writers. Discuss her art of fiction.
查看完整题目与答案
【单选题】按照存储介质分类,机械硬盘(传统硬盘)属于()
A.
半导体介质存储
B.
磁介质存储
C.
光介质存储
D.
电介质存储
查看完整题目与答案
【单选题】（） in India, the banana was brought to the America by the Portuguese who found it in Afric
A.
Originally cultivated
B.
Originally being cultivated
C.
Having originally cultivated
D.
Although it originally cultivated
查看完整题目与答案
【单选题】The high price of ivory is increasing the __________to kill elephants everywhere in Afric
A.
protocol
B.
stimulus
C.
monopoly
D.
incentive
查看完整题目与答案
【单选题】It was the belief _____ Alex Haley could find his “root” in Afric______ made him decide to go to Gambia.
A.
that; which
B.
which; which
C.
that; where
D.
that; that
查看完整题目与答案
【多选题】施工调查中的测绘工作应摸清隧道所在地段的( )。
A.
地形地貌
B.
地质及水文地质情况
C.
自然条件
D.
施工条件
查看完整题目与答案
【单选题】已知一组数据的标准差等于5,变异系数等于10%。则均数为( )
A.
100
B.
50
C.
10
D.
20
查看完整题目与答案
【判断题】int a[],b;是声明了一个int型一维数组和一个int型变量b
A.
正确
B.
错误
查看完整题目与答案
【单选题】The ostrich, the largest bird in the world at present, lives in the drier regions of Africa outside the actual deserts. Because of its very long, powerful legs and the floating effect of its extended ...
A.
it is a special kind of bird
B.
it lives in large desert areas
C.
it has special wings and legs
D.
it is the largest bird in the world
查看完整题目与答案
相关题目：
【单选题】( )位于柱与枋相交处,有加强额枋和减少跨距的作用。
A.
斗拱
B.
雀替
C.
挂落
D.
雕饰
查看完整题目与答案
【简答题】Toni Morrison is considered the best and the most representative of the contemporary African American writers. Discuss her art of fiction.
查看完整题目与答案
【单选题】按照存储介质分类,机械硬盘(传统硬盘)属于()
A.
半导体介质存储
B.
磁介质存储
C.
光介质存储
D.
电介质存储
查看完整题目与答案
【单选题】（） in India, the banana was brought to the America by the Portuguese who found it in Afric
A.
Originally cultivated
B.
Originally being cultivated
C.
Having originally cultivated
D.
Although it originally cultivated
查看完整题目与答案
【单选题】The high price of ivory is increasing the __________to kill elephants everywhere in Afric
A.
protocol
B.
stimulus
C.
monopoly
D.
incentive
查看完整题目与答案
【单选题】It was the belief _____ Alex Haley could find his “root” in Afric______ made him decide to go to Gambia.
A.
that; which
B.
which; which
C.
that; where
D.
that; that
查看完整题目与答案
【多选题】施工调查中的测绘工作应摸清隧道所在地段的( )。
A.
地形地貌
B.
地质及水文地质情况
C.
自然条件
D.
施工条件
查看完整题目与答案
【单选题】已知一组数据的标准差等于5,变异系数等于10%。则均数为( )
A.
100
B.
50
C.
10
D.
20
查看完整题目与答案
【判断题】int a[],b;是声明了一个int型一维数组和一个int型变量b
A.
正确
B.
错误
查看完整题目与答案
【单选题】The ostrich, the largest bird in the world at present, lives in the drier regions of Africa outside the actual deserts. Because of its very long, powerful legs and the floating effect of its extended ...
A.
it is a special kind of bird
B.
it lives in large desert areas
C.
it has special wings and legs
D.
it is the largest bird in the world
查看完整题目与答案
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