例句與造句

1. The mean lifespans of the three mutant mouse strains were similar to each other, at about 37 weeks, compared to 108 weeks for the wild-type control.
2. Classical conditioning of a Purkinje cell deficient mutant mouse strain helped to determine the extent to which spared regions in cerebellar cortex were compensating for lesioned regions in the studies mentioned above.
3. It's difficult to find mutant mouse strain in a sentence. 用mutant mouse strain造句挺難的