已知点A(1,2),B(4,6),C为线段AB中点,则点C为( )
A:(52,4)
B:(﹣52,4)
C:(52,﹣4)
D:(﹣52,﹣4)
该图正在进行的农业生产活动是( )
-- You see, it's my dream to buy __________ iPhone 6S.
-- Oh, you can ask your parents to buy __________for you.