江西省的专升本考试英语考试题型是怎么样的啊？哪...

在人际交往中，人们都有明显的对自我价值感的维护倾向。这种现象体现的人际交往原则是（ ）

A.情境控制
B.社会交换
C.互相接纳
D.维护自尊

对于微分方程y"-2y'+y=xex，利用待定系数法求其特解y*时，下列特解设法正确的是（）

A.Y*=(Ax+B)ex
B.y*=x(Ax+B)ex
C.y*=Ax3ex
D.Y*=x2(Ax+B)ex

Mrs.Peters stopped playing the piano when she began to work.She had lived in a very small?flat,and there had been no room for a piano.But when she married,she had a new flat which was?big enough for one.So she decided to get one and her husband agreed and helped her.She saved?some money,and her parents gave her a generous amount of money for her birthday.Then she went?to a shop and said,"I′ll choose whichever piano does not cost too much and fits into my living room."
When she had paid for the piano,the shop assistant asked her if she would like him to get it?tuned(调音)evey few months.Mrs.Peters agreed.
A few months later she heard from the shop that a man was coming to tune the piano at ten that?morning.Now she had not cleaned the house yet,so it was dusty and untidy.Mrs.Peters hated having?even the least amount of dirt,and felt ashamed whenever strange people saw her house like that.So she had to hurry..to clean everything carefully.It meant a lot of effort,and it made her hot and tired,but anyhow,by the time the man arrived,everything was finished.
She opened the door,and the man was standing there with a big dog.!"Good morning,"the man said politely,"Will it disturb you if I bring my dog in,please?I′m blind,and he leads me wherever?I go.

One morning,__

A.a man was coming to repair her piano
B.Mrs.Peters received a telephone call from the shop
C.the piano was sent to her house at 10 o'clock
D.Mrs.Peters was going to clean the house