【判断题】二氧化锆式氧传感器的基本元件是专用陶瓷体,即二氧化锆固体电解质。
【多选题】根尖的初生分生组织初步分化为( ) 、( ) 和 ( )三部分,以后分别发育成 ( )、( )和( ) 。
【简答题】根尖的初生分生组织初步分化为_______、_______和_______三部分,然后分别发育成_______、_______和_______。
【单选题】Only by shouting at the top of his voice .
A.
was he able to make himself hear
B.
he was able to make himself hear
C.
he was able to make himself heard
D.
was he able to make himself heard
【判断题】氧化锆式氧传感器的基本元件是专用陶瓷体,即氧化锆(ZrO 2 )固体电解质。()
【判断题】根尖的初生分生组织初步分化为原表皮、基本分生组织和原形成层三部分,以后分别发育成表皮、皮层和中柱鞘。