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【单选题】
指出下面正确的输入语句是A.
scanf ( “a=b=%d”,&a,&b)
B.
scanf ( “a=%d,b=%f”,&m,&f );
C.
scanf ( “%3c”,c);
D.
scanf ( “%5.2f”, &f);
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参考解析：
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皮皮学刷刷变学霸
举一反三
【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
C.
经济订货批量模型中得到的批量是最优的
D.
最大最小库存控制系统也是一种固定间隔期系统
【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】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.
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