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【简答题】
语言符号的物质表现形式是______，语言符号的表现内容是______。
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举一反三
【单选题】H e continued speaking, my feelings on the matter.
A.
regardless
B.
r egardless of
C.
r egarding
D.
regarding of
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【判断题】特征选择和特征提取的目的是为了降低特征空间的维度。
A.
正确
B.
错误
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【单选题】下列加点词语的解释不正确的一项是( )
A.
猝不及防：猝，突然，出其不意。
B.
迟疑：犹豫；拿不定主意。
C.
哽咽：咽：声音阻塞，多指哭泣。
D.
莫名其妙：名，明白
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【单选题】特征提取的目的是()
A.
降低空间维数，使后续分类器设计在计算上更容易实现
B.
消除特征之间可能存在的相关性，使新特征更有利于分类
C.
以上都是
D.
以上都不是
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【单选题】The tone of this passage is mainly.
A.
humorous
B.
of a matter-of-fact
C.
bitter and ruthless
D.
emotional
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【多选题】根据流体流动的空间特点,通常可将油气藏分为 和 两大类
A.
构造油气藏
B.
层状油气藏
C.
岩性油气藏
D.
块状油气藏
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【单选题】As is often the _______, the h ousewife gives the house a thorough cleaning ________. [     ]
A.
matter; every two days
B.
situation; each second day
C.
same; each two days
D.
case; every second day
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【单选题】根据流体流动的空间特点,通常可将油气藏分为 层状油气藏 和 两大类。
A.
构造油气藏
B.
点状油气藏
C.
岩性油气藏
D.
块状油气藏
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【判断题】特征提取是通过映射得到一组新的特征，特征选择是从高维特征中选出一组最有效的特征以达到降低特征空间维数的目的。
A.
正确
B.
错误
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【单选题】It has been hypothesized that much of the matter in the universe is 'dark,' i. e. , unseen. Studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than ...
A.
Measurements of the speed of moving galaxies are extremely unreliable.
B.
The workings of gravitational forces are not particularly well understood.
C.
The aggregate mass of visible stars in the galaxies mentioned above can be estimated with some confidence.
D.
The general composition of unseen matter in the universe has been determined.
E.
Without exception, the galaxies mentioned above move toward one another.
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相关题目：
【单选题】H e continued speaking, my feelings on the matter.
A.
regardless
B.
r egardless of
C.
r egarding
D.
regarding of
查看完整题目与答案
【判断题】特征选择和特征提取的目的是为了降低特征空间的维度。
A.
正确
B.
错误
查看完整题目与答案
【单选题】下列加点词语的解释不正确的一项是( )
A.
猝不及防：猝，突然，出其不意。
B.
迟疑：犹豫；拿不定主意。
C.
哽咽：咽：声音阻塞，多指哭泣。
D.
莫名其妙：名，明白
查看完整题目与答案
【单选题】特征提取的目的是()
A.
降低空间维数，使后续分类器设计在计算上更容易实现
B.
消除特征之间可能存在的相关性，使新特征更有利于分类
C.
以上都是
D.
以上都不是
查看完整题目与答案
【单选题】The tone of this passage is mainly.
A.
humorous
B.
of a matter-of-fact
C.
bitter and ruthless
D.
emotional
查看完整题目与答案
【多选题】根据流体流动的空间特点,通常可将油气藏分为 和 两大类
A.
构造油气藏
B.
层状油气藏
C.
岩性油气藏
D.
块状油气藏
查看完整题目与答案
【单选题】As is often the _______, the h ousewife gives the house a thorough cleaning ________. [     ]
A.
matter; every two days
B.
situation; each second day
C.
same; each two days
D.
case; every second day
查看完整题目与答案
【单选题】根据流体流动的空间特点,通常可将油气藏分为 层状油气藏 和 两大类。
A.
构造油气藏
B.
点状油气藏
C.
岩性油气藏
D.
块状油气藏
查看完整题目与答案
【判断题】特征提取是通过映射得到一组新的特征，特征选择是从高维特征中选出一组最有效的特征以达到降低特征空间维数的目的。
A.
正确
B.
错误
查看完整题目与答案
【单选题】It has been hypothesized that much of the matter in the universe is 'dark,' i. e. , unseen. Studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than ...
A.
Measurements of the speed of moving galaxies are extremely unreliable.
B.
The workings of gravitational forces are not particularly well understood.
C.
The aggregate mass of visible stars in the galaxies mentioned above can be estimated with some confidence.
D.
The general composition of unseen matter in the universe has been determined.
E.
Without exception, the galaxies mentioned above move toward one another.
查看完整题目与答案