问题 填空题

给下列的数据填上恰当的单位.

(1)一只钢笔的质量约为21______;

(2)一个中学生的质量约为50______;

(3)一头大象的质量约为6______;

(4)一枚大头针的质量约为60______.

答案

(1)一个山楂的质量在20g左右,钢笔的质量与山楂的质量差不多,为21g;

(2)成年人的质量在65kg左右,中学生比成年人的质量小一些,在50kg左右;

(3)大象的质量比较大,可以达到6t左右;

(4)20枚大头针的质量大约1g,所以一枚的质量约

1g
20
=0.05g=50mg,接近60mg.

故答案为:(1)g;(2)kg;(3)t;(4)mg.

单项选择题

[背景材料]
生产安全事故的报告和调查处理,是安全生产工作的重要环节。我国政府历来重视生产安全事故的报告和调查处理工作,我国建国以来先后制定了一系列有关生产安全事故报告和调查处理的法规和标准,如国务院1956年颁布了《工人职员伤亡事故报告规程》,1989年颁布了《特别重大事故调查程序暂行规定》,1990年颁布了《海上交通事故调查处理条例》,1991年颁布了《企业职工伤亡事故报告和处理规定》,2001年颁布了《国务院关于特大安全事故行政责任追究的规定》,2007年4月颁布了《生产安全事故报告和调查处理条例》,2007年7月颁布了《铁路交通事故应急救援和调查处理条例》。此外,在《安全生产法》、《矿山安全法》、《消防法》、《道路交通安全法》、《海上交通安全法》、《铁路法》、《民用航空法》等法律中也对有关事故的报告和调查处理工作做出了明确规定。另外,国家还颁布了《企业职工伤亡事故分类标准》(GB6441—1986)、《企业职工伤亡事故调查分析规则》 (GB6442—1986)、 《企业职工伤亡事故经济损失统计标准》(GB6721—1986)、《事故伤害损失工作日标准》(GB/T15499—1995)等标准。
国务院2007年4月9日颁布的《生产安全事故报告和调查处理条例》是《安全生产法》的重要配套法规,它在总结国务院颁布的《企业职工伤亡事故报告和处理规定》和《特别重大事故调查程序暂行规定》实施经验的基础上,对生产安全事故的报告和调查处理做出了全面、明确的法律规定,是各级人民政府、安全生产监督管理部门和负有安全生产监督管理职责的其他有关部门做好事故报告和调查处理工作的主要法律依据。本章根据新颁布的《生产安全事故报告和调查处理条例》和有关法律、法规就生产安全事故报告和调查处理的有关规定和知识作一介绍。
根据以上场景,回答下列问题:

构成《生产安全事故报告和调查处理条例》所划分的特别重大事故的条件是( )。

A.一次造成5000万元~1亿元直接经济损失

B.一次造成1000万元~5000万元直接经济损失

C.一次造成3~9人死亡

D.一次造成100人以上(含100人)重伤(包括急性工业中毒)

E.一次造成50~99人重伤(包括急性工业中毒)

单项选择题

In 1998 consumers could purchase virtually anything over the Internet. Books, compact discs, and even stocks were (1) from World Wide Websites that seemed to (2) almost daily a few years earlier, some people had predicted that consuners accustomed to shopping in stores would be (3) to buy things that they could not see or touch (4) . For a growing number of time-starved consumers, however, shopping from their home computer was proving to be a convenient (5) to driving to the store.

A research estimated that in 1998 US consumers could purchase $ 7.3 billion of goods over the Internet, double the 1997 total. Finding a bargain was getting easier, (6) the rise of online auctions and Websites that did comparison shopping on the Internet for the best (7) .

For all the consumer interest, (8) in eyberspaee was still a largely (9) business, however. Internet pioneer Amazon. eom, which began selling books in 1995 and later (10) into recorded music and videos, posted (11) of $ 153.7 million in the third quarter, up from $ 37.9 million in the same period of 1997. Overall, (12) , the company’ s loss widened to $ 45.2 million from $9.6 million, and analysts did not expect the company to turn a profit (13) 2001. (14) the great loss, Amazon. tom had a stock market value of many billions, reflecting investors’ (15) about the future of the industry.

Internet retailing appealed (16) investors because it provided an efficient means for reaching millions of consumers without having the cost of operating (17) stores with their armies of salespeople. Selling online carried its own risks, however, (18) so many companies competing tor consumers’ attention, price competition was (19) and profit (20) thin or nonexistent.

13()

A.in

B.by

C.after

D.until