【单选题】【消耗次数：1】
水平投影重合的两个点，称为（ ）。
①
水平重影点
②
不能确定
③
正面重影点
④
侧面重影点
参考答案：
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相关题目
【单选题】
下列关于重影点投影可见性的判别方法说法有误的一项是（ ）。
①
对正面重影点，观者从前向后看，前面一点看得见，后面一点看不见
②
对侧面重影点，观者从左向右看，左面一点看得见，右面一点看不见
③
对水平重影点，观者从上向下看，上面一点看得见，下面一点看不见
④
在投影图上判别重影点的可见性时，要求把看的见的点的投影符号用括号括起来
【单选题】
已知四点A（10、20、30）、B（30、20、10）、C（10、20、10）、D（20、20、30），则对H面的重影点为______。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
A与D，D点可见
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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B与C，B点可见
③
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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A与C，A点可见
④
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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A与C，C点可见
【单选题】
地面两点间的水平距离是指（ ）。
①
该二地面点间连线的长度
②
该二地面点之连线投影于水平面上的线段长度
③
该二地面点之连线铅垂投影于水平面上的线段长度
④
过该二地面点的铅垂线之间的距离
随机题目
【单选题】
Breaking Mary’s doll was purely ____. John didn’t mean to
do it.
①
incidental
②
accidental
③
occasion
④
opportunity
【单选题】
Televisions enable us to see things happen almost at
the exact moment ____.
①
which they are happening
②
they are happening
③
which they happen
④
they have happened
【单选题】
It is the ability to do the job_____ matters, not where you
come from or what you are.
①
one
②
that
③
what
④
if
【单选题】
Mac’s close ____ to his brother made people mistake them for one another.
①
resemblance
②
identity
③
appearance
④
relationship
【单选题】
My father is so deaf that he has to use a hearing ____.
①
help
②
aid
③
support
④
tool
【单选题】
I understand ____ preparation that staff must put in under pressure to meet the deadline.
①
more than the enormous amount of
②
better than most the enormous number of
③
better than most the enormous amount of
④
fewer than the number of
【单选题】
When I got out of the car and walked about among them, ____ one old man who shook his head disapprovingly, they all began to cheer.
①
see that
②
except that
③
provided that
④
except for
【单选题】
She resorted to ____ when she had no money to buy foods for her children.
①
have stolen
②
steal
③
stole
④
stealing
【单选题】
Would you mind _____ your radio a little bit? I cant concentrate on my work.
①
turning on
②
turning down
③
turning to
④
turning in