光导纤维地震电缆线的拉断力（）。
A.≥1600N
B.≥640N
C.≥3600N
D.≥4600N
参考答案：A
Many people think that some hobbies can _______ the way _______ school work. [ ]
A. get up; at
B. get off; on
C. get on;
D. get in; of
