物理层的主要功能是利用物理传输介质为数据链路层提供物理连接,以便透明地传送( )。

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问题:

物理层的主要功能是利用物理传输介质为数据链路层提供物理连接,以便透明地传送( )。

A.比特流

B.帧序列

C.分组序列

D.包序列

考点:计算机等级考试网络技术三级网络技术笔试
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纯电容器电路中,电流相位领先电压相位()。

A、45°

B、90°

C、135°

D、180°

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命令SET DELET OFF的作用是( )。

A.禁止对数据库记录进行删除

B.使删除标记读任何命令无影响

C.执行删除命令时,不提供任何信息

D.取消删除标记

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How many of us would temp for three years while we waited for the perfect job Not many of us, perhaps. But Wentworth Miller, the "Prison Break" star, said he chose to wait even longer time (1) he found the right job.
"Actually I think it might have been three or four years until I was lucky enough to get guest (2) on TV shows," said Miller, 34, who rose to international stardom (3) to "Prison Break" in 2006. That kind of patience and p will was portrayed in "Prison Break". Miller (4) engineering wizard Michael Scofield, who tries everything to break out of a Chicago (5) with his brother. Miller said he was fond of his character, (6) he said "exists in shades of grey".
Miller comes from a (7) of teachers. He said he didn’t seem fated for a career in the arts, (8) his passion for acting. After (9) from Princeton with an English degree, he moved (10) his parents’ request to Los Angeles to look for a stable life. He started (11) in a little company that made television movies. This (12) simply faxing, filing, walking the boss’ dog and going to the store for the boss’ lunch. Every weekend during the summer, Miller (13) go to the office (14) he didn’t have air-conditioning. "I would hang (15) in the conference room and set up camp and rob the company kitchen," recalled Miller.
(16) , Miller realized he still had questions about his choice. He decided to quit. But the boss said he was making a mistake and offered him a well-paid assistant position. "I eventually (17) that if I did the corporate job, it would be great if I was successful, but I would always wonder about the (18) . If I did the acting and was successful, I would never wonder (19) that job," he explained. He quit and temped (20) many people in the entertainment industry.
Now, he’s a hot star and has people coming up to him at film festivals saying, "Weren’t you the one who (21) to stand by the copy machine "
"That was tough, but I’m glad I have that perspective. Because now I’m at a point (22) big shots laugh at all my jokes and I think, You know, I got coffee for people like you for six years’. So I know what’s (23) , because I’ve seen the other side." But what if, when he was offered the corporate job, there had been more money "It was never about the (24) There’s a kind of excitement that comes along with acting. I can’t find it anywhere else. Even if I had to go back to temping, even if this is not the beginning of an amazing career, I would not (25) making that jum
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上海市某区法院审理一起盗窃案件。被告人胡某,蒙古族,内蒙古人,在法庭审理前,它提出自己只会蒙文,听不懂普通话,要求有人提供翻译。对此,以下说法正确的是 ( )。

A.胡某无权提出这一请求,因为普通话是国语,胡某提出请求只是借口

B.对胡某的这一请求,法院不应当准许,因为不符合申请翻译的条件

C.对胡某的这一请求,法院应当准许,但应由胡某承担翻译费用

D.对胡某的这一请求,法院应当准许,并且无须胡某承担翻译费用

题型:单项选择题

阿托品中毒时的解救措施中,错误的是()

A.洗胃、导泻

B.注射拟胆碱药对抗其周围症状

C.人工呼吸和吸氧

D.用抗心律失常药缓解其心率加快

E.用物理方法降低体温

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