题目内容
(请给出正确答案)
[单选题]
C>DOSDEBUG-NC:BOOT.A-L100-W100001-Q这是做什么用的应用程序()
A.备份
B.读写
C.恢复A盘引导扇区
D.备份A盘引导区
![](https://lstatic.shangxueba.com/sxbcn/h5/images/tips_org.png)
A.备份
B.读写
C.恢复A盘引导扇区
D.备份A盘引导区
第3题
当PT筛选试验异常时,需要进行活性检测的是
A、Ⅱ:C、Ⅴ:C、Ⅶ:C、Ⅹ:C
B、Ⅱ:C、Ⅴ:C、Ⅷ:C、Ⅹ:C
C、Ⅷ:C、Ⅸ;C、Ⅺ:C、Ⅻ:C
D、Ⅱ:C、Ⅶ:C、Ⅸ:C、Ⅹ:C
E、Ⅱ:C、Ⅴ:C、Ⅶ:C、Ⅻ:C
第4题
A.c>='A' && c<='Z'
B.c >= 'A' || c<='Z'
C.c < 'A' && c > 'Z'
D.c < 'A' || c > 'Z'
第5题
A.νC==O>νC==N>νC==C
B.νC==C>νC==N>νC==O
C.νC==N>νC==C>νC==O
D.νC==N>νC==O>νC==C
第9题
A.c>='a' and c<='Z'
B.c>='A' and c<='z'
C.c>='a' and c<='z' and c>='A' and c<='Z'
D.c>='a' and c<='z' or c>='A' and c<='Z'
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