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【简答题】
已知 ,则其电流有效值 I I = A ,频率 f = H Z ,初相位为 。
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【单选题】The word 'corresponding' in the last paragraph means ______ .
A.
keeping in touch
B.
in harmony
C.
small
D.
different
【单选题】安装flask的命令是?
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pop install flask
B.
pip install flask
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install flask
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pip flask
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2
B.
1
C.
0.5
D.
0.25
【单选题】在牛顿定律区,颗粒的沉降速度与其直径的 次方成正比。
A.
1
B.
2
C.
0.5
D.
0.25
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A.
Alt+Tab
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Alt+Esc
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Win+Tab
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【单选题】The passage indicates that instrumental leaders generally focus on______.
A.
ensuring harmonious relationships
B.
sharing responsibility with group members
C.
identifying new leaders
D.
achieving a goal
【单选题】进行JWXC-2.3型交流闭路式驼峰轨道电路分路测试时,所使用的标准分流电阻的阻值为( )。
A.
0.05Ω
B.
0.06Ω
C.
0.5Ω
D.
0.6Ω
【单选题】在 windows7中用于应用程序之间切换的快捷键是( )
A.
Win+Tab
B.
Alt+Tab
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Alt+Esc
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以上都是
【单选题】How does everything living on earth live()
A.
Each plant can live alone.
B.
Each animal can live alone.
C.
Everything living on earth cannot live without needing other living things.
D.
If living things want to live they must kill each other.
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