—Firstly, you should mix the flour with a certain amount of water.
A:pour... into
B:put... together
C:take... out of
-Do you mind if I sit here?
-__________. It's for my friend Cindy.
4g氢气和34g氧气充分燃烧后,生成水的质量为 ( )
如图,直角坐标系中,点A(-2,2)、B(0,1)点P在x轴上,且△PAB是等腰三角形,则满足条件的点P共有( )个