單項選擇題
下面程序段計算學(xué)生的外語附加分：外語6級（lang6）為 ”優(yōu)秀” 加15分，”通過” 加10分；外語4級（lang4）為 ”優(yōu)秀” 加8分，”通過” 加4分，外語附加分只能計一次最高的分?jǐn)?shù)。下面 能正確計算。
A、If lang6 = "優(yōu)秀" Then langf = 15 ElseIf lang6 = "合格" Then langf = 10 ElseIf lang4 = "優(yōu)秀" Then langf = 8 ElseIf lang4 = "合格" Then langf = 4 Else langf = 0 EndIf
B、If lang4 = "合格" Then langf = 4 ElseIf lang4 = "優(yōu)秀" Then langf = 8 ElseIf lang6 = "合格" Then langf = 10 ElseIf lang6 = "優(yōu)秀" Then langf = 15 Else langf = 0 EndIf
C、If lang6 = "優(yōu)秀" Then langf = 15 If lang6 = "合格" Then langf = 10 If lang4 = "優(yōu)秀" Then langf = 8 If lang4 = "合格" Then langf = 4 langf = 0
D、If lang4 = "合格" Then langf = 4 If lang4 = "優(yōu)秀" Then langf = 8 If lang6 = "合格" Then langf = 10 If lang6 = "優(yōu)秀" Then langf = 15 Else langf = 0
E、If lang6 = "優(yōu)秀" Then langf = 15 If lang6 = "合格" Then langf = 10 If lang4 = "優(yōu)秀" Then langf = 8 If lang4 = "合格" Then langf = 4 Else langf = 0
