选择题:—I can.t see the words on the blackboard. —Perhaps

题目内容:
—I can.t see the words on the blackboard. —Perhaps you need _________.(本题1.0分)
A、 to examine your eyes
B、 to have your eyes examined
C、 to have examined your eyes
D、 your eyes to be examined
参考答案:

已知字母a的ASCII十进制代码为97,则执行下列语句后的输出结果为().char a=’a’;a-

已知字母a的ASCII十进制代码为97,则执行下列语句后的输出结果为().char a=’a’;a--;printf("%d,%c\n",a+’2’-’0’,a

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