问题
单项选择题
计算机系统接地线截面的选择(采用绝缘铜绞线或电缆为接地线)。
计算机系统地(逻辑地、信号地、屏蔽地)至总接地板的连接为( )。
A．6mm2；
B．10mm2；
C．16mm2；
D．20mm2。
答案
参考答案：C
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计算机系统接地线截面的选择(采用绝缘铜绞线或电缆为接地线)。
计算机系统地(逻辑地、信号地、屏蔽地)至总接地板的连接为( )。
A．6mm2；
B．10mm2；
C．16mm2；
D．20mm2。
参考答案：C
e are faced with a challenge, we usually have two __24__: we can try to beat it off, or we can decide that the thing presenting the challenge isn’t worth the _25__ and call it quits. Although there are _26_ times when calling it quits is
the right thing to do, in most cases all that is needed is commitment and _27_. 
ard as it was, it made me who I am today. And that is a good thing.” 