A-A+
Why leisure time spent in front of the screen
问题详情
Why leisure time spent in front of the screen is related to heart diseases？
A．Some content of the TV programs makes the heart beat faster.
B．It causes chemical processes in people"s body to change.
C．Extended sitting slows circulating blood to the heart.
D．Radiation from the screen causes physical harm to the heart.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：根据题干中的related和heart diseases将本题出处定位到第七段。该段提到，该研究报告得出结论，坐在屏幕前的娱乐时间与心血管事件及各种原因所导致的死亡之间具有“独立而有害的关系”，这很可能是因为它会引起新陈代谢变化，[B]正是对原因的同义转述，故答案为[B]。其余三个选项在文中均未提及。
