有以下程序
#include
void fun(int a，int b，int C)
a=456，b=567，c=678；
void main( )
int x=10，y=20，z=30；
fun(x，y，z)；
cout ＜ ＜ x ＜ ＜ ’，’ ＜ ＜ y ＜ ＜’，’ ＜ ＜ z ＜ ＜ end1；
输出结果是
A．30，20，10
B．10，20，30
C．456，567，678
D．678，567，456
参考答案：B
解析：解析：本题考查函数中变量的作用范围，在主函数中给变量x，y，z赋值，然后将其作为实参传递给了函数fun( )，虽然在函数fun( )中改变了这3个变量的值，但只是同名的局部变量，不影响函数中变量的值，所以在调用函数fun( )结束后，主函数3个变量的值未改变。
| 完形填空 | |||
| I can still remember when I met my best friend.She had just moved into the neighborhood and her grandmother brought her down to__1__me.I hid behind my mother and she hid behind her grandmother, __2__to look at each other.Soon we lost the__3__and started playing with each other. In the 7th grade,I first lost touch with her.She was__4__family problems and I deserted her to be with the__5__people.None of my new friends liked her as much as I did because they knew she had__6__. However,every summer we__7__always sit at each other's house and watch soap operas,and talk about all the boys we liked. It was last year when I noticed the problem.I guess I was__8__devoted in high school to__9__she needed someone there for her.Anyway,she made a new best friend and so did I．Then I didn't know why, __10__she started cutting herself! She then was diagnosed(诊断) with clinical depression.At first,I was very__11__,but we still stayed in __12__.I wanted to be there for her since her new best friend basically__13__her and people were calling her__14__. Yesterday she came to me and said,"I never knew what a best friend was__15__you were the only person that would stop me cutting.I__16__you so much,and you didn't even know you were__17__me." We both cried.And I guess a kind of__18__from my life so far is never to give up on your friends.Even if they aren' t as cool as others,or people think they are crazy,they need__19__there.If you desert them, you will only be__20__ yourself. | |||
| ( )1．A.follow ( )2．A.scared ( )3．A.temper ( )4．A.taking up ( )5．A.happier ( )6．A.problems ( )7．A.should ( )8．A.much ( )9．A.admit ( )10．A.but ( )11．A.calm ( )12．A.place ( )13．A.confused ( )14．A.crazy ( )15．A.unless ( )16．A.expect ( )17．A.urging ( )18．A.honour ( )19．A.someone ( )20．A.innocent | B．meet B．annoyed B．interest B．getting through B．cooler B．shortcomings B．could B．too B．accept B．for B．considerate B．touch B．bothered B．stubborn B．as B．influence B．blaming B．favour B．something B．successful | C．join C．worried C．confidence C．going through C．stronger C．partners C．would C．only C．consider C．or C．upset C．control C．reminded C．clumsy C．until C．appreciate C．helping C．pleasure C．anyone C．guilty | D．support D．delighted D．shyness D．making up D．cleverer D．disabilities D．might D．just D．realize D．so D．helpful D．mood D．deserted D．stupid D．that D．demand D．hurting D．lesson D．everything D．reliable |