79. The word “focus on” (underlined in the last paragraph) probably means _________.
A. to fix one’s eyes on one point
B. to arrange the camera lens on one point
C. to give a lot of attention to one particular subject
D. to take care to do something special
出自:新疆师范大学2021级学生第一学期结业课程考试《大学英语》

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