题目内容
It’s impossible to _____ the results without knowing more about the research methods employed.
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Linda was a real _____ at the party though she made great effort to remain quiet all the time.
The policemen _____ the suspects’ faces closely, trying to work out who was lying.
The job requires a lot of enthusiasm, dedication and _____. Think it twice before you decide to apply for it.
1.食用菌一般由（ ）两部分组成
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