The major problem with E-mail is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day. In addition, mail boxes require some management to (74) messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send (75) messages.

A. fullB. lost
C. inundated D. filled

2009年7月5日，乌鲁木齐发生了一起民族分裂分子境外指挥、境内行动，有预谋、有组织的打砸抢事件。公安部门已抓捕一千多名参与打砸抢烧杀嫌犯，他们将依法受到法律的惩处。这说明

①我国坚持公民在法律面前一律平等原则

②公民必须在宪法和法律允许的范围内行使政治权利和自由

③司法机关必须公正司法，严格执法

④公民在行使自己的自由和权利时，不得侵犯国家、集体、社会和他人的合法权益

A．①②③

B．①②④

C．②③④

D．①③④