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【单选题】
打平底孔时,顶锥角为多少度
A.
0
B.
45
C.
90
D.
180
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参考解析：
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【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
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【单选题】 运行以下脚本后,数组$array 的内容是什么? $v) { $v = 2; } ?>
A.
array ('2', '2')
B.
array ('1', '1')
C.
array (2, 2)
D.
array (Null, Null)
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【单选题】Find the sentence that is closest in meaning to the one given for each question. These activities will help students improve their reading and understanding skills. After failing a doping test at the ...
A.
At the Seoul Olympics Ben Johnson and many others were disqualified after failing a doping test.
B.
If Ben Johnson hadn't been tested positive for doping at the Seoul Olympics, he wouldn't have lost his gold medal.
C.
Since Ben Johnson confessed having used doping his gold medal was taken back.
D.
As Ben Johnson failed the doping test again at the Seoul Olympics, he was stripped of his gold medal.
E.
Although Ben Johnson failed the doping test he wasn't disqualified from the Seoul Olympics.
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【单选题】测定某药物的炽灼残渣,坩锅在700°C炽灼至恒重后重量为30.2080g,加入样品后共重31.2030g,照炽灼残渣检查法处理、 炽灼后,称得重量为30.2092g,则炽灼残渣为( )。
A.
1.2%
B.
0.12%
C.
98.8%
D.
99.9%
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【简答题】This mixing is called doping. A semiconductor can be doped to contain more electrons (N-type) or fewer electrons (P-type). Examples of commonly used semiconductors are silicon and germanium. Phosphoro...
查看完整题目与答案
【简答题】The word doping is probably from the Dutch word dop, the name of an alcoholic drinks make of g skins used by Zulu soldiers in order to encourage their bravery in battle. The term became current ar...
查看完整题目与答案
【单选题】(函数)下面的PHP程序运行结果是什么( )?
A.
array(3){[0]=>int(3) [1]=>int(2) [2]=>int(1)}
B.
array(3){[0]=>int(1) [1]=>int(2) [2]=>int(3)}
C.
array(3){[2]=>int(1) [1]=>int(2) [0]=>int(3)}
D.
array(3){[2]=>int(3) [1]=>int(2) [0]=>int(1)}
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【单选题】下面的PHP程序运行结果是什么?( ) 'a',1=>'b'); print_r($array); ?>
A.
Array([1]=>b)
B.
Array([true]=>a,[1]=>b)
C.
Array([0]=>a,[1]=>b)
D.
没有输出
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【简答题】"PHP" , "b" => "ASP" , "c" => "JSP" ); $a = each ( $arr ); $b = each($arr); print_r ( $b ); ?>A. Array (    [0] => PHP    [key] => PHP    [1] => a    [value] => a ) B. Array (    [0] => PHP    [...
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【单选题】下面代码的运行结果是 ____________________________ 。
A.
Array ( [0] => ”PHP” [1] => ”程” [2] => ”序” [3] => ”设” [4] => ”计” )
B.
Array (  ”PHP”  ”程” ”序”  ”设”  ”计” )
C.
Array (  ”PHP程序设计” )
D.
Array ( [0] ,[1],]2],[3],[4] )
查看完整题目与答案
相关题目：
【单选题】Doping is used to ( ).
A.
decrease the conductivity of an intrinsic semiconductor
B.
increase the conductivity of an intrinsic semiconductor
C.
stabilize the conductivity of an intrinsic semiconductor
D.
increase the insulative quality of an intrinsic semiconductor
查看完整题目与答案
【单选题】 运行以下脚本后,数组$array 的内容是什么? $v) { $v = 2; } ?>
A.
array ('2', '2')
B.
array ('1', '1')
C.
array (2, 2)
D.
array (Null, Null)
查看完整题目与答案
【单选题】Find the sentence that is closest in meaning to the one given for each question. These activities will help students improve their reading and understanding skills. After failing a doping test at the ...
A.
At the Seoul Olympics Ben Johnson and many others were disqualified after failing a doping test.
B.
If Ben Johnson hadn't been tested positive for doping at the Seoul Olympics, he wouldn't have lost his gold medal.
C.
Since Ben Johnson confessed having used doping his gold medal was taken back.
D.
As Ben Johnson failed the doping test again at the Seoul Olympics, he was stripped of his gold medal.
E.
Although Ben Johnson failed the doping test he wasn't disqualified from the Seoul Olympics.
查看完整题目与答案
【单选题】测定某药物的炽灼残渣,坩锅在700°C炽灼至恒重后重量为30.2080g,加入样品后共重31.2030g,照炽灼残渣检查法处理、 炽灼后,称得重量为30.2092g,则炽灼残渣为( )。
A.
1.2%
B.
0.12%
C.
98.8%
D.
99.9%
查看完整题目与答案
【简答题】This mixing is called doping. A semiconductor can be doped to contain more electrons (N-type) or fewer electrons (P-type). Examples of commonly used semiconductors are silicon and germanium. Phosphoro...
查看完整题目与答案
【简答题】The word doping is probably from the Dutch word dop, the name of an alcoholic drinks make of g skins used by Zulu soldiers in order to encourage their bravery in battle. The term became current ar...
查看完整题目与答案
【单选题】(函数)下面的PHP程序运行结果是什么( )?
A.
array(3){[0]=>int(3) [1]=>int(2) [2]=>int(1)}
B.
array(3){[0]=>int(1) [1]=>int(2) [2]=>int(3)}
C.
array(3){[2]=>int(1) [1]=>int(2) [0]=>int(3)}
D.
array(3){[2]=>int(3) [1]=>int(2) [0]=>int(1)}
查看完整题目与答案
【单选题】下面的PHP程序运行结果是什么?( ) 'a',1=>'b'); print_r($array); ?>
A.
Array([1]=>b)
B.
Array([true]=>a,[1]=>b)
C.
Array([0]=>a,[1]=>b)
D.
没有输出
查看完整题目与答案
【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    [...
查看完整题目与答案
【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] )
查看完整题目与答案