客户办理补卡业务可凭有效证件至营业厅办理，凭服务密码无法办理。（）
参考答案：错
John wants to _ __ the Music Club and becomes a new member of it.
A．join
B．join in
C．will join
D．take part in
PLC程序可以在编程软件中设置加密。（）
