在电子商务中，物流服务 包括商流服务。

2011年2月，一则“内地‘皮革奶粉’死灰复燃，长期食用可致癌”的新闻引起了网友们的广泛关注．食品与健康息息相关，下列作法不会危害人体健康的是（　　）

A．香肠中加过量的亚硝酸钠

B．鸭饲料添加苏丹红

C．蒸馒头加适量纯碱

D．用硫酸镁浸泡黑木耳

     Fortunately, I've been able to avoid the traffic jam brought by presidential visits because ! don't have to commute anywhere. Barack Obama visited Los Angeles recently which paralyzed large sections of a city and you could almost hear the collective pain of unhappy commuters.

I am among the l0 percent of people in the US that regularly work from home. You could include Obama among them, although I suspect his working area in the White House is better-equipped than my small space on to the back of the garage. He also probably doesn't have a problem with three little kids interrupting his phone calls or bursting into his office at inappropriate moments.

Every day there they are, knocking on my window and peering inside, as if looking at an animal in a zoo. Once, a telephone interview I was doing with the former California governor Arnold Schwarzenegger was interrupted by my older son, then three years old, and completely naked "Ahaaar!" he shouted to my face. "What was that?" said Schwarzenegger. I stammered(结巴地说出) something about the joys of children and silently managed to shoo the boy out of the room without putting down the phone.

I shouldn't complain. I no longer have to stand having someone's armpit(腋窝) being pressed into my face on a crowded train and home status means ! should be a more productive worker although working from home could also lead to "avoiding duties from home". I would argue that a bigger problem is going nuts: Staring at the same walls every day and not going anywhere can do strange things to a person.

I realized I had to get out of the house at least once a day to avoid turning into an unshaven and unshoweredrecluse(隐士) who was still in his pyjamas at dinner time. I would work for an hour or so in a local coffee shop but, like most routine, this became boring because I would constantly see the same faces: Screenwriters poring over screenplays, elderly women heading to the yoga studio next door and hordes of overweight middle-aged male cycling by.

And yet here I am several years later, still working from home consciously and, I'm happy to report, not sitting at my desk in my pyjamas. Not since last Tuesday, anyway.

小题1:The author may agree that __

A．it's a bad decision to work from home

B．presidential visits bring inconvenience to the locals

C．if a person wants to be more productive, he must work from home

D．the former California governor was angry at the interruption during the interview小题2:The incident of three-year-old son is described to prove that___

A．working from home has some drawbacks

B．working from home is a pleasant experience

C．Barack Obama has better working conditions than the author

D．it's unfortunate for the author to have a naughty boy小题3: The reason why the author goes to the coffee shop is that __

A．he wants to get familiar with the people around

B．he doesn't like working in his pyjamas at home

C．he becomes bored with being a commuter

D．he needs some changes to get relaxation小题4:The whole passage suggests that __

A．the author has to work from home

B．any routine definitely means boredom

C．the author is a humorous person

D．working from home contributes to avoiding duties

根据以下信息，回答第119题至第121题。

一家公司在12月31日结账前试算平衡表如下。

现金 80000美元

应收账款 100000美元

存货(期末) 230000美元

总固定资产 600000美元

累计折旧 60000美元

应付账款 200000美元

长期债务 1000000美元

普通股 2000000美元

留存收益(1月1日) 500000美元

销售收入 750000美元

采购 530000美元

管理费用 200000美元

其他信息

·期初存货余额是140000美元。

·长期负债每年以10%的利率支付利息，每12个月支付一次，这笔债券在当年7月1日发行，5年到期。

·固定资产有10年的估计使用寿命，在当年开始时已使用了1年，公司使用直线法折旧。

公司为了财务报告目的使用直线法折旧，但为了避税目的使用加速折旧法。为了避税目的使用的财务报表上的下列（）账户余额会比在一般目的的财务报表上的余额更低。

A．累计折旧

B．现金

C．留存收益

D．总固定资产

弯管的方法很多，常用有压（顶）弯、（）、回弯和挤弯等。

弹性链形悬挂第一吊弦点到定位点的距离为（）。

A.2m

B.4m

C.6m

D.8.5m