我是一名大专生，明年想专升本，想到广西师范大学...

本题属于基本概念理解应用题，考核的知识点是同时履行抗辩权。同时履行抗辩权，是指在双务合同中，当事人没有约定先后履行顺序的，一方在对方未为对待给付以前，可拒绝履行自己债务的权利。本题的事实属于该情形，可见选项A是正确的，由此排除其他选项。 【评注】应对同时履行抗辩权有准确的理解和把握，同时也应熟悉其他抗辩权的含义和适用情形，这样才能便于对同时履行抗辩权的理解以及对各抗辩权进行辨析。

LECTURE NOTICE?March 12,2010
Dear Neighborhoods,
Nowadays,the crime among teenagers seems increasing,so we invite a famous professor,Dr．Li Zhigang from Beijing Normal University to give a lecture on the topic“Teenagers'Education at Home”．This lecture could be very helpful to us who are doubt in how to communicate with our own children,who feel difficult to control our children,who don't know how to deal with the problems our children face and so on．We will have personal discussion with the professor after the lecture if you need any help from him．
The lecture will begin at 8:00 p．m．Friday,in the Meeting Room,Building 4．One member,at least from each family,is required to attend．
Please be there on time．If you have any problem to be present,please call 54312789．
Neighborhoods'Committee