用“√”给下列词语中加粗的字选择正确的读音。
多数(shǔ shù) 更早(gèng gēng) 鲁迅(xìn xùn) 不朽(xiǔ xǔ)
shù gèng xùn xiǔ
In relation to the Labour Contract Law of China:
(b) state the various circumstances under which an open-ended employment contract must be concluded by the employer and employee. (8 marks)
阀门起什么作用?有几种主要形式?各安装在哪些部位?