It is very important for us to find a () between work life and home life.
A. way
B. balance
C. blank
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Please hand () your homework in time .
A. on
B. out
C. in
It will take us () hour to get there.
A. a
B. two
C. an
A well () job description can answer a lot of questions from job seekers.
A. written
B. write
C. wrote
计算题:某地高校教育经费(x)与高校学生人数(y)连续六年的统计资料如表:要求:①建立回归直线方程②估计教育经费为500万元的在校学生数。