有两个多项式M=x2-1,N=x2-2x+1,则下列_____为M与N的公因式A

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问题:

有两个多项式M=x2-1,N=x2-2x+1,则下列_____为M与N的公因式

A.x+1
B.x-1
C.2x+1
D.2x-1
考点:公因式
题型:选择题

A passenger told all air hostess(空姐)that he needed a cup of water to take his 小题1:when the plane just took off. She said to him,“I’ll bring you the water   小题2:  ten minutes."

Thirty minutes later, when the passengerring for service sounded, the air hostess ran ill a hurry .She Was so busy that she 小题3: to bring him the water. As a小题4:.the passenger couldn’t take his medicine in lime. The air hostess hurried over to him with a cup of wale. but he  小题5: it.

After a short while, the air hostess came up to him with a smile,” Could you please tell me what I can do for you, sir? "The passenger turned around without any words. The second time .also with a sweet smile, "Would you like 小题6: I can do for you?” Again the passenger refused.

In the following hours 013.the flight, each time the air hostess passed the passenger, she would ask him 小题7:a smile whether he needed some help or not. But the passenger never replied to her. When the passenger was going to get 小题8:the plane, he asked the air hostess to hand him the passenger's booklet (小册子).She knew that he would write down terrible words about her job.   小题9:still with a smile she handed it to him.

Getting off the plane. the air hostess opened the booklet, and smiled because the passenger wrote,” How can I refuse your twelve sweet    小题10: ?"

题型:选择题

下列不属一级护理的是( )。

A.高热病人
B.瘫痪病人
C.昏迷病人
D.休克病人
E.病情较重,生活不能完全自理者

题型:选择题

下列( )进程间的通信方式不能传递大量信息。

A.消息缓冲

B.信箱通信

C.共享内存

D.信号量及P、V操作

题型:选择题

消费需求的影响因素中不包括( )。

A.可支配收入
B.总体价格水平
C.汇率
D.居民财富

题型:选择题

依法定程序批准进入市场的新型灯具进场验收,应()

A、查验安装、使用、维修和试验要求等技术文件

B、查验质量合格证明文件

C、因有异议送有资质试验室进行抽样检测

D、进行外观检查,并对灯具的绝缘电阻、内部接线等性能进行现场抽样检测

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