爆破器材不能存放的地方是（）。 A.地面爆炸材料库 B.井下爆炸材料库 C.选矿车间

实践的最基本的形式是

A．改造世界的物质活动

B．改造自然的生产劳动

C．一切创造性活动

D．推动历史进步的活动

甲欠债数百万元无力偿还，遂萌生偷越国境外逃之念，便向其认识的远洋船舶船员乙提出要求，请乙以远洋船员的身份携其偷渡前往美国。在乙携甲秘密登轮后，被其他船员发现并告发，甲，乙即被公安机关羁押，该船被迫推迟离港3天，损失数十万元。乙的行为构成：()

A．偷越国(边)境罪

B．组织他人偷越国(边)境罪

C．叛逃罪

D．不构成犯罪

文献按类型可分为哪几种出版物？请具体说明。

For each blank, choose the best answer from the four choices and write down on the answer sheet.

(1) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.

(2) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

(3) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.

(4) is the popular LAN developed under the direction of the IEEE 802.5.

(5) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

4（）

A．Ethernet

B．Token Bus

C．Token Ring

D．DQDB

左思风力