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【单选题】
以下CSS代码中,( )属于ID选择器。A.
p{ font-size:14px;}
B.
#mytitle{font-size:14px;}
C.
oneclass{font-size:14px;}
D.
*{font-size:14px;}
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【简答题】试用CT74LS290的异步置零功能构成下列计数器。
【单选题】What will cause traffic jams? 查看材料
A.
Buildings on Parson's Place.
B.
Building near the railway station.
C.
Travelers in the narrow streets.
D.
People going to the shops and hotels.
【多选题】What will cause a Ezonexam router to enter setup mode? (Choose two)
A.
The configuration file is missing in NVRAM.
B.
The configuration register is set to 0x2100.
C.
Boot system commands are misconfigured in the running-configuration.
D.
The setup command was issued from the privileged mode prompt.
E.
The IOS is missing.
F.
The IOS is corrupt.
【简答题】判断以下短语的类型 洗刷干净( )
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