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题目内容
（广西培贤国际职业学院-大学英语2）
The old man has two daughters,__________are doctors.(本题2.0分)
A、 both of them
B、 both of whom
C、 both who
D、 they both
A、 both of them
B、 both of whom
C、 both who
D、 they both
参考答案