I had a ...............(shaking- nodding - slight) acquaintance with such matters and had ...................(scant- slender- limited) knowledge of the subjects under review.
1) Can a native or an English teacher tell me if there are any differences among the following adjectives in this case?
2) What's the difference between "knowledge" and "acquaintance"? I cannot see any important differences between them in this sentence.
Perhaps the word is 'shaky' (although I suspect there's a stronger collocation with 'knowledge' or 'understanding' than with 'acquaintance' - I must check). 'Shaky' means more than just partial; it means partial and therefore unreliable.