依据拼音在括号中填写恰当的汉字。（要求：书写正确、规范、美观）
相形见chù（ ） kè（ ）尽职守
绌 恪
A．In the park.
B．Between two buildings.
C．In his apartment.
D．Under a huge tree.
路由器或者交换机当有空插槽时，必须在空插槽上插上填充卡以保证机架内部气流通畅，正常散热。
