A、have sold
B、have been sold
C、has sold
D、has been sold
第1题:
A. Every 5 minutes
B. Every 90 seconds
C. Every 60 seconds
D. Every 30 seconds
第2题:
假定有“struct BOOK{char title[40]; float price;} book;”,则正确的语句为()。
Astruct BOOK x= &book;
Bstruct BOOK *x=&book;
Cstruct BOOK x=calloc(BOOK);
Dstruct BOOK *x=BOOK;
第3题:
在完整的异常语句中,子句出现的顺序正确的是_______。
A.try—>except—>else—>finally
B.try—>else—>except—>finally
C.try—>except—>finally—>else
D.try—>except—>except—>finally
第4题:
Each life jacket light that has a non-replaceable power source must be replaced ______.
A.every 6 months after initial installation
B.every 12 months after initial installation
C.every 24 months after initial installation
D.on or before the expiration date of the power source
第5题:
使用try……except……结构时,except后可不必指出异常类型
第6题:
Python处理异常的方式包括:
A.try……except
B.try……except……
C.try……except……except……else
D.try……except……else……finally