【单选题】表达式 print('l love python',sep=',',end='.')的输出结果为:
【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
【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。
【单选题】外耳道描述正确的是:
E.
外耳道皮肤较薄,皮下组织层厚,与骨膜结合疏松