【单选题】在杂质半导体中,少数载流子的浓度与 有很大关系。
【判断题】When concluding a speech, it is inappropriate to refer back to ideas mentioned in the introduction.
【多选题】When composing the concluding paragraph you should ______.
A.
begin by stating a new point of view
B.
expand information from specific to general
C.
remind the reader what you have mainly talked about
D.
stress the importance of the whole essay
E.
use the tone different from the introduction
【单选题】在杂质半导体中, 少数载流子的浓度则与 有 很大关系
【单选题】在杂质半导体中,少数载流子的浓度与()有很大关系。
【多选题】在杂质半导体中,多数载流子的浓度取决于 ( ),而少数载流子的浓度与 ( )有很大关系。