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【单选题】
以下程序的输出结果为。int main() {char c1,c2; c1=getchar();c2=c1-32;putchar(c2);putchar('\n'); return 0;} 如果从键盘输入小写字母‘a’,则以下输出结果正确的是:(小写字母a的ASCII码值为97)
A.
a
B.
A
C.
97
D.
65
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参考答案:
举一反三
【简答题】Read the statements. Then listen to a conversation and fill in the blanks about why the people in the conversation were late for the meeting. Alex got 1)_______ with a 2) _______. David waited for 3)_...
【简答题】Mary got a little white lamb. She tied it to a tree in her field during the day and went to take it home every evening. One evening, she found the lamb gone. Someone had cut the rope and stolen the la...
【判断题】橡胶按加工时掺入物质的不同进行分类。( )
A.
正确
B.
错误
【多选题】养殖用水的化学处理主要有( )以及消毒法和脱氮法 。
A.
重金属的去除
B.
硬水的软化
C.
氧化还原法
D.
气浮法
【单选题】下列语句的结果是 main() { int j; j=3; printf("%d,",++j); printf("%d",j++); }
A.
3,3
B.
4,4
C.
3,4
D.
4,3
【判断题】矿物性染发剂是目前大力提倡使用的安全染发剂。
A.
正确
B.
错误
【单选题】如果一个假设在5%的显著水平下被拒绝,则它
A.
在 10% 的显著水平下一定不会被拒绝
B.
在 10% 的显著水平下一定被拒绝
C.
在 1% 的显著水平下一定被拒绝
D.
在 1% 的显著水平下一定不会被拒绝
【单选题】Why haven’talways busy with the computer s.
A.
Amina and Alex got the chance to speak?
B.
Because Amina is always busy after class.
C.
Because Alex is always busy with the computer s.
D.
Because Alex is always busy after class.
【单选题】Alex got fired. – ______? He is devoted to his work. That’s unfair!
A.
What’s up
B.
How is it going
C.
Then what
D.
How come
【简答题】Alex got (1)___________ with a (2)_____________.
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