Process synchronization is an emphasis and difficulty in the teaching of operating system course.
在操作系统课程的教学中，进程同步是其中一个重点，也是难点。
Chinese character is the key as well as the difficulty of Chinese teaching.
汉字是汉语学习的重点也是难点。
Chinese character is the key as well as the difficulty of Chinese teaching.
汉字是汉语学习的重点也是难点。
应用推荐