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计算机系统的主要技术指标？

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有如下程序#include main( ){int x = 072;printf("X=%d.\n", x+1);}程序运行后的输出结果是( )

A. X=59.
B. X=115
C. X=73
D. X=72.

以下程序段中的变量已定义为int类型sum = pad = 5; pAd = sum++, pAd++, ++pAd;printf( "%d\n", pad );程序段的输出结果是( )

A. 5
B. 6
C. 4
D. 程序出错

If you are _______ with travel dates, you may get cheaper flight tickets.

A. flexible
B. inflexible
C. prepared
D. unprepared

You may take public _______ when you travel in Europe, such as trains or subways.

A. bus
B. trip
C. way
D. transport