选择题：简述全国人民代表大会专门委员会的性质和任务

日常生活中，我们经常听到“有权不用，过期作废”的说法。如果此处“权”限定为民事权利，请用我国民法中诉讼时效与除斥期间制度和理论对此加以分析

Zoe,your current colleagues,is leaving for a new position at a different company.Write a letter to c

You can take the books with you and read them（ ）your leisure.at

The Russians sent up the first sputnik and caught the other nuclear powers（ ）surprise.by

The law does not discriminate（ ）any race,creed and color.against