— English is very important in our daily life. Never _______.
A:give up it
B:give it up
C:give away it
D:give it away
如图是人体内主要内分泌腺示意图.据图回答下列问题:
“国以民为本,民以衣食为本,衣食以农桑为本”这句话是谁说的?( )
当桑树的茎折断时,折枝断面上渗出的白色汁液是从哪里流出来的( )