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【单选题】
编写程序实现以下功能：任意输入一个字母，判断其大小写。#include stdio.hvoid main(){ char x; printf(请输入一个字母：); scanf(%c,x); if( ) printf(小写字母\n); else printf(大写字母\n);}在划线处应该填写以下（ ）内容。
A.
(x>="a")&&(x<="z")
B.
(x>=a)&&(x<=z)
C.
(x>='a')&&(x<='z')
D.
以上选项都不对
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【单选题】According to the passage, the Maintenance of Parents Bill ______.
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received unanimous support in Wyoming
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was believed to solve all the problems of the elderly poor
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was intended to substitute for traditional values in Wyoming
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was passed to make the young more responsible for the old
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【简答题】A school that is dedicated to its online programs will have the _______ and the support staff to make it successful.
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【单选题】What does the speaker say she is going to do?
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Drive a different car
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Stop to pick up supplies
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【简答题】Different DBMSs support different query languages, although there is semi-standardized query language called SQL.
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【单选题】According to the passage, the Maintenance of Parents Bill ______.
A.
received unanimous support in Wyoming
B.
was believed to solve all the problems of the elderly poor
C.
was intended to substitute for traditional values in Wyoming
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was passed to make the young more responsible for the old
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【简答题】Can you name several common relational DBMSs?
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