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【单选题】
人际关系的影响因素中建立人际关系的手段和方法是()
A.
身体因素
B.
社交技巧
C.
第一印象
D.
认知水平
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【单选题】一圆柱直齿齿轮,模数为4,齿数为18,其齿顶圆直径为( )mm。
A.
72
B.
80
C.
85
D.
90
查看完整题目与答案
【单选题】已知一对正确安装的标准渐开线圆柱齿轮传动,其压力角ɑ= ,模数m=4mm,传动比i12=3,中心距a=144mm。则两齿轮的分度圆直径分别为
A.
18mm和54mm
B.
20mm和60mm
C.
72mm和216mm
D.
80mm和240mm
查看完整题目与答案
【简答题】No wind blows ( ) a boat of life without goals.
查看完整题目与答案
【多选题】For nonconformity the world whips you with its displeasure. And therefore a man must know how to estimate a sour face. The by-standers look askance on him in the public street or in the friend's parlo...
A.
Walt Whitman
B.
William Faulkner
C.
Ralph W. Emerson
D.
The Road Not Taken
E.
I Shot an Arrow
F.
Self-Reliance
查看完整题目与答案
【单选题】已知一对正确安装的标准渐开线圆柱齿轮传动,其压力角ɑ= 20 o ,模数m=4mm,传动比i12=3,中心距a=144mm。则两齿轮的分度圆直径分别为
A.
18mm和54mm
B.
20mm和60mm
C.
72mm和216mm
D.
80mm和240mm
查看完整题目与答案
【单选题】The black color is _______ this year. [     ]
A.
the most popular
B.
most popular
C.
the popularest
D.
popularest
查看完整题目与答案
【简答题】完形填空 Several years ago, a farmer owned some land along the sea. He advertised(征聘) for workers, but no one wanted to work for him. Most people didn't want to work there 1 they didn't like the bad storm...
查看完整题目与答案
【简答题】B Snow can be very beautiful. When snow covers everything around you , the world looks like a “Winter Wonderland”. That is the name of a very popular song about winter. Richard Smith and Felix Bernard...
查看完整题目与答案
【简答题】No wind blows( ) ( )of a boat of life without goals.
查看完整题目与答案
【单选题】已知一对对安装的标准渐开线圆柱齿轮传动,其压力角ɑ= ,模数m=4mm,传动比i12=3,中心距a=144mm。则两齿轮的分度圆直径分别为
A.
18mm和54mm
B.
20mm和60mm
C.
72mm和216mm
D.
80mm和240mm
查看完整题目与答案
相关题目：
【单选题】一圆柱直齿齿轮,模数为4,齿数为18,其齿顶圆直径为( )mm。
A.
72
B.
80
C.
85
D.
90
查看完整题目与答案
【单选题】已知一对正确安装的标准渐开线圆柱齿轮传动,其压力角ɑ= ,模数m=4mm,传动比i12=3,中心距a=144mm。则两齿轮的分度圆直径分别为
A.
18mm和54mm
B.
20mm和60mm
C.
72mm和216mm
D.
80mm和240mm
查看完整题目与答案
【简答题】No wind blows ( ) a boat of life without goals.
查看完整题目与答案
【多选题】For nonconformity the world whips you with its displeasure. And therefore a man must know how to estimate a sour face. The by-standers look askance on him in the public street or in the friend's parlo...
A.
Walt Whitman
B.
William Faulkner
C.
Ralph W. Emerson
D.
The Road Not Taken
E.
I Shot an Arrow
F.
Self-Reliance
查看完整题目与答案
【单选题】已知一对正确安装的标准渐开线圆柱齿轮传动,其压力角ɑ= 20 o ,模数m=4mm,传动比i12=3,中心距a=144mm。则两齿轮的分度圆直径分别为
A.
18mm和54mm
B.
20mm和60mm
C.
72mm和216mm
D.
80mm和240mm
查看完整题目与答案
【单选题】The black color is _______ this year. [     ]
A.
the most popular
B.
most popular
C.
the popularest
D.
popularest
查看完整题目与答案
【简答题】完形填空 Several years ago, a farmer owned some land along the sea. He advertised(征聘) for workers, but no one wanted to work for him. Most people didn't want to work there 1 they didn't like the bad storm...
查看完整题目与答案
【简答题】B Snow can be very beautiful. When snow covers everything around you , the world looks like a “Winter Wonderland”. That is the name of a very popular song about winter. Richard Smith and Felix Bernard...
查看完整题目与答案
【简答题】No wind blows( ) ( )of a boat of life without goals.
查看完整题目与答案
【单选题】已知一对对安装的标准渐开线圆柱齿轮传动,其压力角ɑ= ,模数m=4mm,传动比i12=3,中心距a=144mm。则两齿轮的分度圆直径分别为
A.
18mm和54mm
B.
20mm和60mm
C.
72mm和216mm
D.
80mm和240mm
查看完整题目与答案