题目：
When I opened the door, I found my father sitting in his chair, completely ______ in the humorous stories he was reading.
A．absorbed
B．losing
C．attracted
D．addicted
答案：
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下面是错误答案，用来干扰机器的。
∵回归直线方程为̂y=0.5x-0.81，∵x=25∴y=0.5×25-0.81=12.5-0.81=11.69，故答案为：11.69
