问题 单项选择题

10Mbps的传输速率,每秒钟可以发送( )bit。

A.1×107

B.1×106

C.1×109

D.1×1012

答案

参考答案:A

解析:
数据传输速率在数值上等于每秒钟传输构成数据代码的二进制比特数,单位为比特/秒(bit/second或bit per second) ,记作b/s或bps常用的数据传输速率单位有kbps、Mbps、Gbps。 1kbps=103bps,1Mbps=106bps,1Gbps=109bps。

阅读理解

阅读理解。

     Last week my youngest son and I visited my father at his new home in Tucson, Arizona. He moved

there a few years ago, and I was eager to see his new place and meet his friends.

     My earliest memories of my father are a tall, handsome, successful man devoted to his work and his

family, but uncomfortable with his children. As a child I loved him. He seemed unhappy with me unless

I got straight A's and unhappy with my boyfriends if their fathers were not as "successful" as he was.

Whenever I went out with him on weekends, I used to struggle to think up things to say, feeling on guard.

     On the first day of my visit, we went out with one of my father's friends for lunch at an outdoor café.

We walked along that afternoon, did some shopping, ate on the street table, and laughed over my son's

funny facial expressions. Gone was my father's critical (挑剔的) air and strict rules. Who was this person

I knew as my father, who seemed so friendly and interesting to be around? What had held him back before?

     The next day dad pulled out his childhood pictures and told me quite a few stories about his own

childhood. Although our times together became easier over the years, I never felt closer to him at that

moment. After so many years, I'm at last seeing another side of my father. And in so doing, I'm delighted

with my new friend. My dad, in his new home in Arizona, is back to me from where he was.

1. Why did the author feel bitter about her father as a young adult?

A. He was silent most of the time.

B. He was too proud of himself.

C. He did not love his children.

D. He expected too much of her.

2. When the author went out with her father on weekend, she would feel _____.

A. nervous

B. sorry

C. tired

D. safe

3. What does the author think of her father after her visit to Tucson?

A. More critical.

B. More talkative.

C. Gentle and friendly.

D. Strict and hard-working.

4. The underlined words "my new friend" in the last paragraph refer to _____.

A. the author's son

B. the author's father

C. the friend of the author's father

D. the café owner

问答题


1996年1月24日11点25分,A市矿务局某煤矿多种经营公司的下属煤矿之一的七井发生一起特别重大的瓦斯爆炸事故,死亡人数达到99人(其中女职工37人)、伤3人,直接经济损失450万元。该矿直属于B集团公司。
七井曾在1994年和1995年连续两年被B集团公司多种经营公司授予A级质量标准化矿井。施工七井与六井相贯通的西主运巷,属于后来的技术改造工程,没有科学的设计和规划,煤矿多种经营公司把此项工程仅作为一般掘进巷道对待。局多种经营公司对该项工程没有引起足够的重视,只是口头同意,没有制定贯通后相应可靠的隔爆等安全措施。
1月24日早晨6点30分,七井井长刘某、生产副井长李某分别召开七井、六井班前会。会议宣布了煤矿多种经营公司22日的会议决定,25日各井停产放假一天,并对该天的工作作出统一安排和部署,对所属各段队当班的工作作出了相应的安排布置。8点左右,七井煤矿87人,六井煤矿24人分别入井工作。
当天正值公司对各井进行月末验收工作,七井主任兼工程师黄某和七井各段段长与公司地测科主测王某等4名测工入井作业,并对左三、右四、右二工程工作面分别进行检测和验收。
七井9点停电,七井的左三工作面风电闭锁装置,由于发生了故障已于1月22日拆除,至24日仍未能及时更换安装。井下停电停风,引起瓦斯积聚。
停电之后,工人仍在井下工作。到11点25分时,在左三工作面,放炮员正在进行放炮作业,其他人员处于躲炮位置。因放炮员违章使用煤电钻电源插销,明火放炮产生火花,引起瓦斯爆炸。
在99名遇难者中,七井遇难人员多被爆炸的冲击力冲击致死,而六井的遇难人员均为一氧化碳中毒,冲击伤并不明显。
当天,七井主任工程师黄某和七井各段段长与公司地测主测王某等4名测工对左三、右四、右二工程工作面地质变化和瓦斯量增加未予引起足够的重视,当即验收了左三、右四、右二工程,并于11点左右升井。刚升井就听到井筒传出巨大的轰响声,爆炸发生了。
事故发生之后,七井制定了工作面停风撤人和瓦斯排放制度,瓦斯巡视员对巡视路线、巡视点和检测时间记录不清,入井人员没有配备自救器;井下没有隔爆设施和消尘洒水系统;特种作业人员(瓦斯检查工、放炮工等)未按规定培训考核和持证上岗;对女职工入井作业问题,矿务局始终没有彻底查除。
根据以上场景,回答下列问题:

根据《中华人民共和国安全生产法》,提出对有关责任人的初步处理建议。