【单选题】若两足并拢自然站立时,两膝能靠拢,或虽有间隙在 为正常腿型。( )
【简答题】阅读下面的短文,回答后面的问题。 Paul got on the bus to go to the town. It was very crowded, and he had to stand for about five minutes. Then some of the passengers got off. Paul sat down next to a fat lady. She had ...
【单选题】()中关于夏朝的记载是《夏本纪》的来源出处。
【单选题】乙肝病人蛋白质的摄入应占总能量的百分比是多少。( )