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【单选题】
主轴回转轴线的误差运动可以分解为纯径向跳动、纯轴向窜动和纯倾角摆动三种基本形式，其中，（）会造成镗出的椭圆形。A.
纯径向跳动
B.
纯轴向窜动
C.
纯倾角摆动
D.
如果纯轴向窜动较大时
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知识点：
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【多选题】知识点雷达图主要包括哪些元素? What elements does the knowledge point radar map mainly include?
A.
雷达网格 Radar grid
B.
需要标定的各个知识点 The knowledge point that needs to be calibrated
C.
理解程度 Understanding level
D.
思维过程 Thinking process
【单选题】使用 722 型分光光度计时, 正确的调节方法是: ( )
A.
盖上样品室盖子调“0”和“100”
B.
盖上样品室盖子调“0”; 打开盖子调“100”
C.
打开样品室盖子调“0”和“100”
D.
打开样品室盖子调“0”; 盖上盖子调“100”
【单选题】使用722型分光光度计时,正确的调节方法是( )。
A.
盖上样品室盖子调“0”和“100”
B.
盖上样品室盖子调“0”；打开盖子调“100”
C.
打开样品室盖子调“0”和“100”
D.
打开样品室盖子调“0”；盖上盖子调“100”
【单选题】What elements does the communication involve?
A.
sender
B.
receiver
C.
message
D.
all of the above
【简答题】What elements does an introduction part contain in a 5 paragraph essay? What are they?
【简答题】v Video: Zootopia_1_2 v Thinking: v 1. Why did the negotiation of buying popsicles succeed? What techniques or elements did the rabbit use? v 2. Why did the rabbit fail to negotiate with the fox after...
【多选题】What elements does the graduation thesis research need to have?
A.
a clearly stated research question
B.
a systematic review of relevant literature
C.
a systematic method of data collection
D.
new contributions to knowledge and/or practices
E.
application of a business theory
【单选题】What elements does an optimized website need to introduce?
A.
Proper keywords
B.
proper meta-tags
C.
proper title-tags
D.
all of the above
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