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【单选题】
在三投影面体系中，若物体上的直线垂直于侧立面，则该直线为（），在（）投影为反映实长的横线。
A.
铅垂线；侧立面
B.
水平线；正立面
C.
侧垂线；水平面
D.
正垂线；水平面
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举一反三
【单选题】His political rivals_________ for an attack on his policies.
A.
are biding their time
B.
are birding their time
C.
is biding his time
D.
is birding his time
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【单选题】关于简并轨道说法错误的是( )
A.
l =1, m=0,+1, -1, 有2种空间取向。
B.
P x ，P y ，P z 为 3条简并轨道，也就是说 p 轨道是3 重简并的。
C.
m的不同取值，意味着原子轨道的空间取向不同，但一般不影响能量。
D.
把同一亚层（即l相同），伸展方向不同的原子轨道称为等价轨道或简并轨道 。
查看完整题目与答案
【单选题】要创建遮罩动画首先要创建( )。
A.
遮罩层
B.
被遮罩层
C.
引导层
D.
被引导层
查看完整题目与答案
【单选题】下面哪项不属于初测的工作?
A.
平面控制测量
B.
测纵横断面图
C.
高程控制测量
D.
带状地形图测绘
查看完整题目与答案
【单选题】______ of recent political developments, he was taken by surprise upon his arrival in the capital.
A.
Unexpected
B.
Unacquainted
C.
Unaware
D.
Unknowing
查看完整题目与答案
【单选题】The political candidate promptly reorganized his staff ______ his landslide defeat in the primaries.
A.
follows
B.
followed
C.
following
D.
to follow
查看完整题目与答案
【单选题】The party leader justified his subsequent reelection ______ that he had brought political stability and economic development to his country.
A.
in the way
B.
by no means
C.
on the grounds
D.
to the extent
查看完整题目与答案
【多选题】下列关于量子数的说法中,错误的是
A.
电子自旋量子数是 ，在某个轨道中有两个电子，所以，总自旋量子数是1或者是0
B.
磁量子数m=0的轨道都是球形轨道
C.
当角量子数是5时，可能有的简并轨道数是10
D.
当主量子数n=5时，就开始出现g分层
查看完整题目与答案
【单选题】以下哪项不属于初步方案的工作内容?
A.
现场测量，确认尺寸
B.
平面布置图、天花图、立面图；
C.
设计说明
D.
造价概算
查看完整题目与答案
【简答题】According to the author ,a politician's morality [A] is no match for his political ambition. [B] has been undervalued by Machiavelli and his likes. [C] is usually of secondary importance. [D] should b...
查看完整题目与答案
相关题目：
【单选题】His political rivals_________ for an attack on his policies.
A.
are biding their time
B.
are birding their time
C.
is biding his time
D.
is birding his time
查看完整题目与答案
【单选题】关于简并轨道说法错误的是( )
A.
l =1, m=0,+1, -1, 有2种空间取向。
B.
P x ，P y ，P z 为 3条简并轨道，也就是说 p 轨道是3 重简并的。
C.
m的不同取值，意味着原子轨道的空间取向不同，但一般不影响能量。
D.
把同一亚层（即l相同），伸展方向不同的原子轨道称为等价轨道或简并轨道 。
查看完整题目与答案
【单选题】要创建遮罩动画首先要创建( )。
A.
遮罩层
B.
被遮罩层
C.
引导层
D.
被引导层
查看完整题目与答案
【单选题】下面哪项不属于初测的工作?
A.
平面控制测量
B.
测纵横断面图
C.
高程控制测量
D.
带状地形图测绘
查看完整题目与答案
【单选题】______ of recent political developments, he was taken by surprise upon his arrival in the capital.
A.
Unexpected
B.
Unacquainted
C.
Unaware
D.
Unknowing
查看完整题目与答案
【单选题】The political candidate promptly reorganized his staff ______ his landslide defeat in the primaries.
A.
follows
B.
followed
C.
following
D.
to follow
查看完整题目与答案
【单选题】The party leader justified his subsequent reelection ______ that he had brought political stability and economic development to his country.
A.
in the way
B.
by no means
C.
on the grounds
D.
to the extent
查看完整题目与答案
【多选题】下列关于量子数的说法中,错误的是
A.
电子自旋量子数是 ，在某个轨道中有两个电子，所以，总自旋量子数是1或者是0
B.
磁量子数m=0的轨道都是球形轨道
C.
当角量子数是5时，可能有的简并轨道数是10
D.
当主量子数n=5时，就开始出现g分层
查看完整题目与答案
【单选题】以下哪项不属于初步方案的工作内容?
A.
现场测量，确认尺寸
B.
平面布置图、天花图、立面图；
C.
设计说明
D.
造价概算
查看完整题目与答案
【简答题】According to the author ,a politician's morality [A] is no match for his political ambition. [B] has been undervalued by Machiavelli and his likes. [C] is usually of secondary importance. [D] should b...
查看完整题目与答案