【单选题】表达式 print('l love python',sep=',',end='.')的输出结果为:
【判断题】当光的频率 时,无论光强多强都不会产生光电效应 。
【判断题】NaN is defined in the Python standard library as the integer 0.
【单选题】Teachers should be _____ with their students but should not be _____ on them.A.hard; strictB.str
A.
50. Teachers should be _____ with their students but should not be _____ on them. A.hard; strict
【单选题】Some teachers believe that students who score high in______ needs tend to make higher grades in college than those who score low.
【判断题】当光的频率【图片】时,无论光强多强都不会产生光电效应。