【单选题】制作框架屋顶三维模型, 使用()编辑修改命令对场景中的三角屋顶进行修改,使之成为一个框架结构的屋顶模型。
【简答题】用LM386集成块,设计一功放电路如。 要求功放电路U 5Q =7.5V,忽略功放管的饱和管压降,则V CC 等于多少? 如要实现电压放大倍数为20倍,电路如何联接?(画出电路则可)。
【多选题】以下关于独立需求库存模型的正确说法是()
A.
再订货点是一个量,由日需求量和订货提前期决定
B.
定期补充库存系统每次的订货量可能不同,因此最高库存量可能不相等
【单选题】患者女性,26岁。出现肠胀气,予肛管排气后缓解不明显,再次进行排气时应间隔
【单选题】What are the two main types of feature introduced in this section?
A.
.the news feature and the profile
B.
the news feature and Live-ins
C.
Live-ins and the profile
D.
the news feature and the trend stories
【简答题】A.literature B.mature C.nature D.feature
【简答题】What is a feature of dolphin mentioned by this passage?
【简答题】One special feature of Crystal Ear is that
【单选题】How to construct new feature space by PCA?
A.
New feature space by PCA is constructed by choosing the most important features you think.
B.
New feature space by PCA is constructed by normalizing input data.
C.
New feature space by PCA is constructed by selecting features randomly.
D.
New feature space by PCA is constructed by eliminating the weak components to reduce the size of the data.