The girls _____ a game called Bomb happily when the teacher suddenly entered the classroom.[ ]

A. played

B. were playing

C. are playing

D. had played

要建立一个随机文件记录学生的信息，如下定义了学生的记录类型，由学号、姓名、5门课程成绩(百分制)组成，下列的定义正确的是( )。

A．Type sru
no As Integer
name As String
score(1 To 5)As Single
End Type

B．Type stu
no As Integer
name As String*10
score()As Single
End Type

C．Type stu
no As Integer
name As String*10
score(1 To 5)As Single
End Type

D．Type stu
no As Integer
name As String
score()As Single
End Type