问题
选择题
(2009天津河东一模)Some students are net surfing．which does great harm to their physical and mental health
A．addicted to
B．related to
C．addicting to
D．relating to
答案
答案：A
be addicted to沉迷于，be related to与……有关，和……有联系。由题意可知，A项正确。