【判断题】二次回路又称二次接线,是将二次设备互相连接而成的电路。
【单选题】有关接触角和润湿性的关系,下列哪个是正确的( )
【单选题】What’s the most important for the designer in advertisements design?
【多选题】有关接触角和润湿性的关系,下列哪几个是正确的( )
【简答题】If your first experience of love filled you with energy and gave you the 1 1 t o explore new areas of life, you’ ll probably always seek romantic partners who are both demanding and giving. If, on the...
【单选题】What’s the most important for the designer in advertisement design?
【简答题】Welcome to our office ! For graduates who wish to obtain your professional career successfully after graduation in a job fair, it is essential to find a satisfactory job. A job interview, in some case...
【单选题】关于接触角的描述,错误的为( )。
A.
当接触角小于 90 ° ,粗糙度越大,表面越亲水。
B.
当接触角大于 90 ° ,粗糙度越大,表面越疏水。
C.
当接触角等于 90 ° ,粗糙度增大,表面接触角不变。
D.
同一固体材料,光滑表面杨氏接触角总大于温策尔接触角。