已有字典DD = {'aa':{'bb':1,'cc':5},'bb':2,'cc':3},下列选项中能够输出5的是______() A: print(DD ['cc']) B: print(DD['aa']['cc']) C: print(DD['aa'][5]) D: print(DD['aa'][1])
已有字典DD = {'aa':{'bb':1,'cc':5},'bb':2,'cc':3},下列选项中能够输出5的是______() A: print(DD ['cc']) B: print(DD['aa']['cc']) C: print(DD['aa'][5]) D: print(DD['aa'][1])
下列表达式的结果正确的是（）。 int aa，bb，cc，dd； aa=bb=cc=dd=1；sp； aa=bb=cc=dd=1；sp； aa=bb=cc=dd=1； （aa+1==2）？bb=aa+2：aa+3 A: 2 B: 3 C: 1 D: 5
下列表达式的结果正确的是（）。 int aa，bb，cc，dd； aa=bb=cc=dd=1；sp； aa=bb=cc=dd=1；sp； aa=bb=cc=dd=1； （aa+1==2）？bb=aa+2：aa+3 A: 2 B: 3 C: 1 D: 5
请参见图示。如果主机 A 向主机 B 发送 IP 数据包，则该数据包在离开主机 A 时的目的地址是（） A: DD：DD：DD：DD：DD：DD B: 172.168.10.99 C: CC：CC：CC：CC：CC：CC D: 172.168.10.65 E: BB：BB：BB：BB：BB：BB F: AA：AA：AA：AA：AA：AA
请参见图示。如果主机 A 向主机 B 发送 IP 数据包，则该数据包在离开主机 A 时的目的地址是（） A: DD：DD：DD：DD：DD：DD B: 172.168.10.99 C: CC：CC：CC：CC：CC：CC D: 172.168.10.65 E: BB：BB：BB：BB：BB：BB F: AA：AA：AA：AA：AA：AA
○最大能填几？○×3<25○×6<37○×4<29○×2<17○×3<19○×6<39○×9<65○×7<58○×8<65○×5<48○×9<37○×6<55
○最大能填几？○×3<25○×6<37○×4<29○×2<17○×3<19○×6<39○×9<65○×7<58○×8<65○×5<48○×9<37○×6<55
以下代码输出的结果为 $a = "cc"; $cc = "dd"; echo $a=="cc"?"{$$a}":$a;
以下代码输出的结果为 $a = "cc"; $cc = "dd"; echo $a=="cc"?"{$$a}":$a;
设有如下程序段： main() char s[4][20]； int i； scanf("%s%s",s[0],s[1])； gets(s[2]);gets(s[3])； for(i=0;i＜4;i++) puts(s[i])； 输入数据如下：(此处＜CR＞代表回车符) aa bb＜CR＞ cc dd＜CR＞ 则程序的输出结果是______。[/i] A: aa bb ccdd B: aa bb cc dd C: aa bb cc dd D: aa bb cc dd
设有如下程序段： main() char s[4][20]； int i； scanf("%s%s",s[0],s[1])； gets(s[2]);gets(s[3])； for(i=0;i＜4;i++) puts(s[i])； 输入数据如下：(此处＜CR＞代表回车符) aa bb＜CR＞ cc dd＜CR＞ 则程序的输出结果是______。[/i] A: aa bb ccdd B: aa bb cc dd C: aa bb cc dd D: aa bb cc dd
下列基因组成中，表现出相同性状的是（） A: Cc和DD B: CC和cc C: Cc和CC D: Cc和cc
下列基因组成中，表现出相同性状的是（） A: Cc和DD B: CC和cc C: Cc和CC D: Cc和cc
多选题01_A多选题01_B多选题01_C多选题01_D A: AA B: DD C: CC D: DD
多选题01_A多选题01_B多选题01_C多选题01_D A: AA B: DD C: CC D: DD
执行下列代码<img src="data:image/png;base64,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" />后，Y的值是？ （ ） A: 9 B: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6, 9} C: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6} D: 6
执行下列代码<img src="data:image/png;base64,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" />后，Y的值是？ （ ） A: 9 B: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6, 9} C: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6} D: 6
在安装JDK时，将JDK的安装包上传到/aa/bb目录下，然后将其解压缩到/aa/cc目录下，并重命名为DD，请问这里的JDK安装路径是什么？ A: aa/bb/DD B: aa/cc/JDK C: aa/bb/JDK D: aa/cc/DD
在安装JDK时，将JDK的安装包上传到/aa/bb目录下，然后将其解压缩到/aa/cc目录下，并重命名为DD，请问这里的JDK安装路径是什么？ A: aa/bb/DD B: aa/cc/JDK C: aa/bb/JDK D: aa/cc/DD