A:what;have never forgotte
B:which; wre never forgotte
C:as ;will never forget
D:that; would never forget
75÷50=____……____
设集合 A=1,2,B=1,2,3,C=2,3,4 ,则A∩B∪C=( )
①实行劳动合同制度是必要的
②签订劳动合同能够维护劳动者的合法权益
③农民文化素质低,又是法盲,打官司必然失败
④劳动合同与每一个劳动者息息相关