对基金份额持有人信息的维护和使用不能留存任何记录，以免泄露个人隐私。 ( )
参考答案：错
The chairman’s speech ______ the radio when I turned it on.
A．was broadcast on
B．was being broadcast on
C．was broadcasting in
D．broadcast over
制氧机还能提取哪些稀有气体？
