You'd better the computer games for long . That’s not good for your health.
A:not play
B:no playing
C:not playing
D:not to play
下列各种生活现象中,不能表明植物进行呼吸作用的是( )
下列说法不正确的是
如图,AB是⊙O的直径,点C在⊙O上,CD⊥AB,垂足为D,已知CD=4,OD=3,求AB的长是 ____