问题 单项选择题

下列合同履行的说法中正确的是( )。

A.经当事人约定,可由债务人向第三人履行债务,但不能由第三人向债权人履行债务

B.经当事人约定,可由第三人向债权人履行债务,但不能由债权人向第三人履行债务

C.债权、债务只能由合同当事人亲自履行,不得由第三方履行

D.经当事人约定,可由债务人向第三人履行债务,也可由第三人向债权人履行债务

答案

参考答案:D

问答题
阅读理解

阅读理解。

     People often talk as if shyness is a disease or mental condition that can be cured.  I prefer to think of it as an emotional disability. It's something we are bom with and something we carry with us in our entire lives. There are too many people,however,who seem to be determined to find some ways of doing away with their shyness. In my opinion,it's a waste of time. I don't mean that we should do nothing about it;quite the

contrary,I think we need to separate the basic fact of shyness from our ability to take part in a social

environment.

      Look at one of the most famous shy people of them all,Johnny Carson. This man is painfully shy,yet

for decades he made a living talking and associating(交往) with different people every night,in front of a

national audience.  Carson has never done away with his shyness,but he has successfully found a way to

deal with it to the extent that he could be, not just a talk show host,but a legend(传奇) among talk show

hosts.  Look also at Sally Fields,who has recently admitted her problem with shyness. This is a woman

who has appeared in many films,TV shows and interviews,yet in her early years she was so shy that she

tumed down a lunch invitation from Jane Fonda because she was terribly afraid of meeting her.

      I guess that our shyness is there because each of us is bom with some msecurity(不安全感) and this

insecurity prevents us from reaching out to others the way people with a more open personality do. As we grow up and become adults,we allow our social skills to grow and develop. But we are still stuck in kindergarten or elementary school or wherever it was when our shyness took root in our soul.

1. In the author's view,shyness can be explained as ______.

A. a disease that can be easily cured        

B. a not very normal mental condition

C. an emotional disability                    

D. something we pick up after birth

2. The author believes it's a waste of time to _____.

A. develop a healthy personality            

B. talk with as many people as possible

C. study where shyness comes from      

D. look for ways to do away with one's shyness

3.  Which of the following is TRUE of Johnny Carson?  

A. He dared to speak in front of a national audience.

B. He did away with his shyness carefully.

C. He was described as a hero in some legend books.

D. He failed to become a good talk show host.

4. The passage tells us that Sally Fields was ______

A. proud all the time                            

B. impolite when young

C. shy in her early years                        

D. close to Jane Fonda

5. The author thinks that our shyness is there because ______.

A. we are not open enough                    

B. we don't feel safe at heart

C. we try to reach out to others all the time    

D. we lack certain social skills