根据汉语提示，用词组的适当形式填空。

1. Xiao Li, don't throw your bag on the ground. Please _______ it _______. (收好)

2. The children found the picnic was _______  _______ (不再) under the tree.

3. The mother often _______ her children _______ (阻止她的孩子们) playing football in the street.

4. We Chinese people are all                             (感到自豪) our country.

5. My new shoes are _______  _______ (穿破了).

大户股民张三在网吧上网炒股，打算下一个大单，猛力打压某个股票。李四与张三在同一网吧，发现张三的意图后，不断发出网络中的广播包，导致该网吧内网络风暴，张三所下的大单在股市开市期间，未能送达股票交易所，造成巨大损失。这在信息安全领域，属于威胁类别为（）。

A.泄密

B.欺骗

C.中断

D.篡夺