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【单选题】
设集合A={x|x 2 －(a+3)x+3a=0},B={x|x 2 －5x+4=0},集合A∪B中所有元素之和为8,则实数a的取值集合为(       )
A.
{0}
B.
{0,3}
C.
{1,3,4}
D.
{0,1,3,4}
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参考答案：
举一反三
【单选题】-Sorry, I made a mistake again. -________.Practice more and you' ll succeed. [     ]
A.
Never mind
B.
Certainly not
C.
Not at all
D.
Don't mention it
查看完整题目与答案
【单选题】在传统BIOS的MBR引导模式下,以下关于Windows操作系统引导过程的顺序,正确的是?
A.
BIOS ->NTLDR (BOOTMGR) ->DBR->MBR
B.
BIOS -> MBR ->DBR ->NTLDR(BOOTMGR)
C.
MBR->DBR->NTLDR (BOOTMGR) ->BIOS
D.
MBR ->BIOS ->DBR ->NTLDR (BOOTMGR)
E.
BIOS->MBR->NTLDR (BOOTMGR) ->DBR
查看完整题目与答案
【单选题】含水率为 5%的砂220g,其干燥后的重量是( )g
A.
209
B.
209.52
C.
210
查看完整题目与答案
【判断题】纳税人因有特殊困难的，不能按期缴纳税款的，经地市以上税务局批准，可以延期缴纳税款。( )
A.
正确
B.
错误
查看完整题目与答案
【多选题】下列各项中，不得加收滞纳金的是( )
A.
纳税人因有特殊困难，不能按期缴纳税款，但未提出延期纳税申请的
B.
纳税人因有特殊困难，不能按期缴纳税款，经批准延期缴纳税款的期限内
C.
因税务机关的责任，致使纳税人未缴或者少缴税款的
D.
因纳税人计算错误等失误，未缴或者少缴税款的
查看完整题目与答案
【判断题】如纳税人因有特殊困难，不能按期缴纳税款的，经县以上国家税务局、地方税务局批准，可以延期缴纳税款。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】--- Could I speak to Mary? --- Well, she’s on holiday, _____ .
A.
actually
B.
indeed
C.
truly
D.
Certainly
查看完整题目与答案
【单选题】含水率5%的砂220g，其干燥后的重量为（）g。
A.
209
B.
209.52
C.
210
D.
209.55
查看完整题目与答案
【单选题】听力原文：M: I've read your application, and I'd like to ask you some questions. W: Certainly. M: Why do you want this job? W: Well, I expect to get some teaching experience. And I like staying with young ...
A.
She likes young people, and wants to get some experience on teaching.
B.
She likes working independently without too much direction.
C.
She wants to work in the office.
D.
The salary is very attractive.
查看完整题目与答案
【单选题】We can infer from the last paragraph that
A.
the end of one business expansion will certainly happen
B.
the business can expand endlessly
C.
economic expansion is fast
D.
economic rise to the peak is slow
查看完整题目与答案
相关题目：
【单选题】-Sorry, I made a mistake again. -________.Practice more and you' ll succeed. [     ]
A.
Never mind
B.
Certainly not
C.
Not at all
D.
Don't mention it
查看完整题目与答案
【单选题】在传统BIOS的MBR引导模式下,以下关于Windows操作系统引导过程的顺序,正确的是?
A.
BIOS ->NTLDR (BOOTMGR) ->DBR->MBR
B.
BIOS -> MBR ->DBR ->NTLDR(BOOTMGR)
C.
MBR->DBR->NTLDR (BOOTMGR) ->BIOS
D.
MBR ->BIOS ->DBR ->NTLDR (BOOTMGR)
E.
BIOS->MBR->NTLDR (BOOTMGR) ->DBR
查看完整题目与答案
【单选题】含水率为 5%的砂220g,其干燥后的重量是( )g
A.
209
B.
209.52
C.
210
查看完整题目与答案
【判断题】纳税人因有特殊困难的，不能按期缴纳税款的，经地市以上税务局批准，可以延期缴纳税款。( )
A.
正确
B.
错误
查看完整题目与答案
【多选题】下列各项中，不得加收滞纳金的是( )
A.
纳税人因有特殊困难，不能按期缴纳税款，但未提出延期纳税申请的
B.
纳税人因有特殊困难，不能按期缴纳税款，经批准延期缴纳税款的期限内
C.
因税务机关的责任，致使纳税人未缴或者少缴税款的
D.
因纳税人计算错误等失误，未缴或者少缴税款的
查看完整题目与答案
【判断题】如纳税人因有特殊困难，不能按期缴纳税款的，经县以上国家税务局、地方税务局批准，可以延期缴纳税款。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】--- Could I speak to Mary? --- Well, she’s on holiday, _____ .
A.
actually
B.
indeed
C.
truly
D.
Certainly
查看完整题目与答案
【单选题】含水率5%的砂220g，其干燥后的重量为（）g。
A.
209
B.
209.52
C.
210
D.
209.55
查看完整题目与答案
【单选题】听力原文：M: I've read your application, and I'd like to ask you some questions. W: Certainly. M: Why do you want this job? W: Well, I expect to get some teaching experience. And I like staying with young ...
A.
She likes young people, and wants to get some experience on teaching.
B.
She likes working independently without too much direction.
C.
She wants to work in the office.
D.
The salary is very attractive.
查看完整题目与答案
【单选题】We can infer from the last paragraph that
A.
the end of one business expansion will certainly happen
B.
the business can expand endlessly
C.
economic expansion is fast
D.
economic rise to the peak is slow
查看完整题目与答案
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