11.   In keeping with her science background, she kept methodical records for her book.

n. + background >>共 218
business 8.32%
middle-class 4.16%
football 2.63%
microwave 2.41%
science 2.41%
sport 2.41%
law 2.19%
class 1.97%
art 1.53%
management 1.53%
science + n. >>共 350
teacher 6.35%
class 3.89%
project 3.65%
experiment 3.45%
professor 2.56%
standard 2.46%
writer 2.27%
student 2.27%
lab 2.22%
department 2.12%
background 0.54%
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