自考本科和3加2专升本有什么区别，报了自考本科...

Five minutes earlier,__.we could have caught the last train.

A.and
B.but
C.or
D.so

甲对乙享有50万元的债权，该债权的诉讼时效期间只剩1年，此时乙将该债务转让给丙，并将债务承担协议于5月3日邮寄给甲，甲于5月9日收到该债务承担协议，5月10日甲通知乙，不同意该债务承担。下列有关诉讼时效的表述正确的是：( ）

A.该债务承担未取得甲的同意，不发生诉讼时效中止的效力
B.该债务承担未取得甲的同意，从5月3日起甲对乙债权的诉讼时效为3年
C.该债务承担未取得甲的同意，从5月9日起甲对乙债权的诉讼时效为3年
D.该债务承担未取得甲的同意，从5月10日起甲对乙债权的诉讼时效为3年

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.

Mrs.Peters had wasted her time getting everything clean as__________

A.the dog would dirty the house
B.the piano tuner could see nothing in the house
C.the dog disturbed Mrs.Peters
D.the piano tuner always took the dog