the lack of knowledge 的the有必要有吗

the lack of和lack of有区别么they didnt finish the experiment successfully because of ( ) courageA lack inB the lacking ofC lack ofD the lack of Lack anything,lack of lack the sense of security...hardwork lack of lack of lack of in the lack of 和 in lack of 有什么区别? in the lack of 和 in lack of 有什么区别? lack of 和in the shortage of 有什么区别 the lack of knowledge 的the有必要有吗 Lack the tune of lyrics,ultimately not perfect Lack the tune of lyrics,ultimately not perfect什么意思 :Lack the tune of lfrics ultimat ely not perfect 4.The real truble___their lack of confidence in their ability. a large degree responsible for the lack of serious progress Serious lack of oxygen in the cabbages什么意思 The m_____ question is a lack of time. I grew up on the lack of love