一轻质弹簧原长为L,劲度系数k等于200N/m,将其上端固定在天花板上的O点,如图1所示.
阅读年代尺,回答第以下两题
Mo Yan's books have been sold out(卖光) in many bookstores __________ his winning of the Nobel Literature Prize (诺贝尔文学奖).
月收入/元
45000
18000
10000
5500
4800
3400
3000
2200
人数
1
3
6
11