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( )
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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
Before you set out, you may make a detailed travel _______ or turn to a travel agent for professional advice.
A. disappointment
B. arrangement
C. argument
D. document
You may buy _______ tickets online to save more money.
A. outline
B. skyline
C. airline
D. hotline