下列关于劳动仲裁原则表述正确的是()

A.或裁或审原则，即对于提请仲裁的案件，人民法院无权受理;人民法院已受理的案件，劳动仲裁无权仲裁

B.劳动仲裁实行一次裁决原则，即指一个裁级一次裁决，一次裁决即为终局裁决

C.资源仲裁原则，申请劳动仲裁需要双方签署劳动仲裁协议，资源交由仲裁机构裁决

D.合议原则，指仲裁庭裁决劳动争议案件，实行少数服从多数的原则，不能形成多数意见的，由仲裁委员会作出最终决定

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．more than

B．than

C．that

D．which