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【单选题】
下面对typedef的叙述中不正确的是A.
用typedef可以定义多种类型名，但不能用来定义变量
B.
用typedef可以增加新类型
C.
用typedef只是将已存在的类型用一个新的标识符来代表
D.
使用typedef有利于程序的通用和移植
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举一反三
【单选题】判断字符串s1是否大于字符串s2,应当使用 。
A.
if(s1>s2)
B.
if(strcmp(s1,s2)<0)
C.
if(strcmp(s2,s1)>0 )
D.
if (strcmp(s1,s2)>0)
【单选题】求 I 1 和 V 3。
A.
V 3 =15V ， I 1 =1A
B.
V 3 =20V ， I 1 =1A
C.
V 3 =20V ， I 1 =3A
D.
V 3 =15V， I 1 =3A
【简答题】Zhou Yan, a Junior 3 student, wishes he never got a mobile phone. Last week, he went to see a doctor because his arms and fingers were injured. The doctor told him that he had “mobile phone disease”. ...
【简答题】阅读理解。 Dear Abby, I am a very conservative woman. I don't drink, dance, wear makeups or pants. I enjoy the company of friends despite (尽管) our differences and thought they enjoyed mine. On our most rec...
【单选题】求 I 1 和 V 3 。
A.
V 3 =20V ， I 1 =3A
B.
3 =15V ， I 1 =3A
C.
V 3 =20V ， I 1 =1A
D.
3 =15V ， I 1 =1A
【简答题】Zhou Yan, a Junior 3 student, wishes he never got a mobile phone. Last week, he went to see a doctor because his arms and fingers(手指) were injured. The doctor told him that he had had “mobile phone di...
【简答题】Dear Abby, I am a very conservative woman. I don’t drink, dance, wear makeups or pants. I enjoy the company of friends despite（尽管）our differences and thought they enjoyed mine. On our most recent outi...
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