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【单选题】
Women are, on the whole, more verbal than men. They are good at language and verbal reasoning, while men tend to be skilled at tasks demanding visual spatial abilities. In fact, along with aggression, these are the most commonly accepted differences between the sexes. Words are tools for communicating with other people, especially information about people. They are mainly social tools. Visual and spatial abilities are good for imagining and manipulating objects and for communicating information about them. Are these talents programmed into the brain? In some of the newest and most controversial research in neurophysiology, it has been suggested that when it comes to the brain, males are specialists while women are generalists. But no one knows what, if anything, this means in terms of the abilities of the two sexes. Engineering is both visual and spatial, and it's true that there are relatively few women engineers. But women become just as skilled as men at shooting a rifle or driving a car, tasks that involve visual spatial skills. They also do equally well at programming a computer, which is neither visual nor spatial. Women do, however, seem less likely to fall in love with the objects themselves. We all know men for whom machines seem to be extensions of their identity. A woman is more likely to see her car, rifle, or computer as a useful tool, but not in itself fascinating. According to the passage, women are usually good at ______.
A.
body language
B.
logical reasoning
C.
tasks demanding for the use of words
D.
both A and B
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【单选题】参量编码的速率为( )
A.
16~64kb/s
B.
1.2~4.8kb/s
C.
4~16kb/s
D.
8~16kb/s
E.
: B
F.
、WCDMA 的帧长为多少?( )
G.
0.5ms
H.
1ms
I.
5ms
J.
10ms
【单选题】电压有效值与电流有效值的乘积称为:()。
A.
瞬时功率
B.
平均功率
C.
有功功率
D.
视在功率
【单选题】[WJ-400-700] RIP协议是目前使用最广泛的动态路由协议之一,下面不属于它解决的问题是?( )
A.
学习路由信息
B.
选择最佳路径
C.
网络变化时的响应
D.
分组无限转发控制
【单选题】参量编码的优点是( )。
A.
话语有明显的失真
B.
对噪声较为敏感
C.
通话语音质量一般
D.
语音编码速率可以很低
【单选题】参量编码的速率为( )
A.
16~64kb/s
B.
1.2~4.8kb/s
C.
4~16kb/s
D.
8~16kb/s
【单选题】电压有效值与电流有效值的乘积称为( )。
A.
瞬时功率
B.
平均功率
C.
视在功率
D.
有功功率
【单选题】膀胱癌的好发部位是
A.
尖部
B.
颈部
C.
底部
D.
体部
E.
三角区和侧壁
【单选题】以下哪项不是落枕的发病原因
A.
睡眠时枕头过高
B.
睡眠时枕头过低
C.
睡眠时头颈过度偏转
D.
睡眠时颈部遭受暴力打击
E.
睡眠时姿势不良
【单选题】下面对参量编码的描述,不正确的为( )
A.
一般情况下,参量编码的速率比波形编码的速率低
B.
参量编码的语音质量优于波形编码的语音质量
C.
参量编码的算法复杂
D.
参量编码一般用于军事上
【单选题】波形、参量和混合编码器的编码速率大小关系为
A.
波形编码器>参量编码器>混合编码器
B.
波形编码器>混合编码器>参量编码器
C.
参量编码器>波形编码器>混合编码器
D.
混合编码器>参量编码器>波形编码器
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