小李在测定某滑轮组的机械效率时,得到下表中的两组数据。
(1)该实验采用的实验装置图应为图中的____(填“甲”或“乙”) 。(2)比较两组实验数据可初步得出:使用同一滑轮组提升物体,物体所受的重力越大,滑轮组的机械效率越____ (选填“高”或“低”) 。
下列是关于天平的使用方法正确的是( )
由周润发主演的电影《孔子》已于2010年元月22日首映,片中南子问孔子:“听说你常讲‘仁者爱人’,那个‘人’字里面包不包括像我这样名声不好的女人呢?”下列对“仁者爱人”理解不正确的是
短文判断。根据短文内容,在表中相应方框内写正确。
My friend is Mike. He is a boy. He is tall. He has strong. He has short hair. He is very active and likes sports.
Amy is his friend. She is a girl. She is short and thin. She has long hair. She is quiet. She likes painting.
Name
boy
girl
tall
short
strong
thin
active
quiet
sports
painting
Mike
Amy
____