The blood of the human body can circulate in the body for 180 weeks in one hour, and the average number of weeks in the body per minute.
人体的血液1小时可以在体内循环180周，平均每分钟在体内循环多少周．
<gadget id="calculator">180 / 60</gadget>
<output>3</output>

<result>3</result>