当事人申请撤销仲裁裁决须符合下列哪些条件( )

A．必须向仲裁委员会提出申请，由仲裁委员会提交给有管辖权的人民法院

B．必须向仲裁委员会所在地的中级人民法院提出

C．必须在自收到裁决书之日起6个月内提出

D．必须有证据证明裁决有法律规定的应予撤销的情形

Most computer systems are (66) to two different groups of attacks: Insider attacks and outsider attacks. A system that is known to be (67) to an outsider attack by preventing (68) from outside can still be vulnerable to the insider attacks accomplished by abusive usage of (69) users. Detecting such abusive usage as well as attacks by outsides not only provides information on damage assessment, but also helps to prevent future attacks. These attacks are usually (70) by tools referred to as Intrusion Detection Systems.

（66）处填（）。

A．vulnerable

B．week

C．sensitively

D．helpless