【单选题】Research universities still attach importance to research in academic promotions partly because ______ .
A.
professors with academic achievements are usually responsible and tough
B.
it is difficult to conduct objective evaluation of teaching quality
C.
top students who want to be challenged appreciate research professors
D.
research helps to improve the effectiveness of teaching
【判断题】干式荷电铅酸蓄电池在急用时,应在向蓄电池内灌注符合规定比重的电解液后静止30~40min。
【多选题】提倡白话文有什么积极意义呢?
C.
有助于使文字的表达能适应现代生活的需要,并且明白易懂
D.
有助于把文化从少数人占有下解放出来,能够为更多的平民所理解和接受
【判断题】组合逻辑电路的输出只与当时输入有关,与电路的上一个状态无关,没有记忆功能
【单选题】无论图形放大与缩小,在标注尺寸时均应按( )来标注。