過拋物線y²=4x的焦點作直線交拋物線于P（x₁,y₁）,Q（x₂,y₂）兩點，若 x₁+x₂=6,則|PQ|的值為（　�。�

A.10                            B.8                       C.5                       D.6

過拋物線y²=4x的焦點作直線交拋物線于P(x₁,y₁)、Q(x₂,y₂)兩點,若x₁+x₂=6,則|PQ|的值為(    )

A.10                   B.8                  C.5                D.6

過拋物線y²=4x的焦點作直線交拋物線于P(x₁,y₁)、Q(x₂,y₂)兩點,若x₁+x₂=6,則|PQ|的值為(    )

A.10                   B.8                  C.5                D.6

過拋物線y²=4x的焦點作直線交拋物線于P(x₁,y₁)、Q(x₂,y₂)兩點,若x₁+x₂=6,則|PQ|的值為…(    )

A.10               B.8                 C.5                  D.6

過拋物線y²=4x的焦點作直線交拋物線于P（x₁,y₁）,Q（x₂,y₂）兩點，若 x₁+x₂=6,則|PQ|的值為（　　）

A.10                            B.8                       C.5                       D.6