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【单选题】
输入或非门的一个输入端接低电平，另一个输入端接数字信号时，则输出数字信号与输入数字信号的关系为A.
高电平
B.
低电平
C.
同相
D.
反相
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举一反三
【简答题】S1:Report condition of survivor.S2:Survivor is injured.Q:What's the condition of survivor?A. In good condition. B. Suffering from injury. C. Suffering from coldness. D. Suffering from shock.
【简答题】简述中国声乐教育第一人和第一所音乐学校。
【判断题】In “Survivor” 16 strangers lived together on an unpopulated island for 49 days.
A.
正确
B.
错误
【单选题】为了判断两个字符串str1和str2是否相等,应当使用( )。
A.
if(str1==str2)
B.
if(str1=str2)
C.
if(strcmp(str1,str2))
D.
if(strcmp(str1,str2)==0)
【单选题】$str = “1,2,3,4,5,16,20”，使用什么函数可以把字符串str转化为包含各个数字的数组？
A.
$arr = implode($str, “,”);
B.
$arr = implode(“,”,$str);
C.
$arr = explode($str, “,”);
D.
$arr = explode(“,”,$str);
【单选题】What is “ survivor’s anguish ”?
A.
Survivors are always angry.
B.
Survivors are more likely to overcome all the difficulties in their future life, because they experienced the extreme pain of a disaster.
C.
Survivors always suffer a variety of long-term physical pain and disability.
D.
It is a kind of depression in which the survivor suffers an aftermath fear of a disaster and uncertainty about what would happen to him or her in the future.
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