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【判断题】
线路高频保护的保护范围是线路两侧所的阻波器之间。A.
正确
B.
错误
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举一反三
【单选题】Doping is used to ( ).
A.
decrease the conductivity of an intrinsic semiconductor
B.
increase the conductivity of an intrinsic semiconductor
C.
stabilize the conductivity of an intrinsic semiconductor
D.
increase the insulative quality of an intrinsic semiconductor
【单选题】 运行以下脚本后,数组$array 的内容是什么? $v) { $v = 2; } ?>
A.
array ('2', '2')
B.
array ('1', '1')
C.
array (2, 2)
D.
array (Null, Null)
【单选题】Find the sentence that is closest in meaning to the one given for each question. These activities will help students improve their reading and understanding skills. After failing a doping test at the ...
A.
At the Seoul Olympics Ben Johnson and many others were disqualified after failing a doping test.
B.
If Ben Johnson hadn't been tested positive for doping at the Seoul Olympics, he wouldn't have lost his gold medal.
C.
Since Ben Johnson confessed having used doping his gold medal was taken back.
D.
As Ben Johnson failed the doping test again at the Seoul Olympics, he was stripped of his gold medal.
E.
Although Ben Johnson failed the doping test he wasn't disqualified from the Seoul Olympics.
【简答题】This mixing is called doping. A semiconductor can be doped to contain more electrons (N-type) or fewer electrons (P-type). Examples of commonly used semiconductors are silicon and germanium. Phosphoro...
【简答题】The word doping is probably from the Dutch word dop, the name of an alcoholic drinks make of g skins used by Zulu soldiers in order to encourage their bravery in battle. The term became current ar...
【单选题】(函数)下面的PHP程序运行结果是什么( )?
A.
array(3){[0]=>int(3) [1]=>int(2) [2]=>int(1)}
B.
array(3){[0]=>int(1) [1]=>int(2) [2]=>int(3)}
C.
array(3){[2]=>int(1) [1]=>int(2) [0]=>int(3)}
D.
array(3){[2]=>int(3) [1]=>int(2) [0]=>int(1)}
【简答题】Collocation Complete the sentences with suitable words from the collocation box. Sometimes more than one collocation is possible. Verbs frequently used with reputation : lose, win, live up to, damag...
【单选题】下面的PHP程序运行结果是什么?( ) 'a',1=>'b'); print_r($array); ?>
A.
Array([1]=>b)
B.
Array([true]=>a,[1]=>b)
C.
Array([0]=>a,[1]=>b)
D.
没有输出
【简答题】"PHP" , "b" => "ASP" , "c" => "JSP" ); $a = each ( $arr ); $b = each($arr); print_r ( $b ); ?>A. Array
(
[0] => PHP
[key] => PHP
[1] => a
[value] => a
) B. Array
(
[0] => PHP
[...
【单选题】下面代码的运行结果是 ____________________________ 。
A.
Array ( [0] => ”PHP” [1] => ”程” [2] => ”序” [3] => ”设” [4] => ”计” )
B.
Array ( ”PHP” ”程” ”序” ”设” ”计” )
C.
Array ( ”PHP程序设计” )
D.
Array ( [0] ,[1],]2],[3],[4] )
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