【简答题】如图,平行四边形ABCD中,E在AC上,AE=2EC,F在AB上,BF=2AF,如果△BEF的面积为2cm 2 ,则平行四边形ABCD的面积为______cm 2 .
【简答题】Beijing, the Capital of China, has now ________________. (a large population, large populations)
【简答题】如图,平行四边形ABCD中,E在AC上,AE=2EC,F在AB上,BF=2AF,如果△BEF的面积为2cm 2 ,则平行四边形ABCD的面积为( )。
【判断题】大红袍是武夷岩茶中非常具有代表性的一个品种,属于青茶。
【简答题】在MCS—51单片机系统中,当某中断源发出中断请求,单片机予以响应时,它必须处于 和 两级开中断状态。
【简答题】?You are a department manager at a large IT company. Next week you are going to Beijing to discuss an important contract. ?Write a note to your assistant: Saying when you want to leave and return; Ask...
【单选题】Ever since Ming furniture went on exhibit in Beijing, there large crowds at the World Art Museum every day.