第二章测试1.( ) is the most commonly used monosaccharide and the main energy source. ( )
A:Glucose
B:Maltose
C:Lactose
D:Fructose
答案:A
2.Adherent cells need to be passaged via ( ). ( )
A:Enzymatic digestion method
B:Centrifugation
C:Freezing preservation method
D:Mechanical separation method
3.US federal law requires researchers to follow ( ) principles in animal experiments. ( )
A:Repeat
B:Replacement
C:Refinement
D:Reduction
4.Cell experiments can replace animal experiments. （ ）
A:对 B:错 5.Suspension cells need to attach to a surface in the early stage of cell culture. （ ）
A:错 B:对
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