以下哪些内容是关系到个人资金安全的威胁（）。
A.木马
B.黑客攻击
C.盗版软件
D.网络钓鱼
参考答案：A, B, D
--- Hello, this is Lily speaking. Could I speak to Mr. Black?
--- Sorry. He ______ the Xuanwu Lake Park.
A．has been to
B．went to
C．has gone to
D．will go to
下列物质的用途与其化学性质相关的是[ ]
A．铜作导线
B．煤炭作燃料
C．铁制炊具
D．黄金压成金箔
