问题 多项选择题

肛瘘形成后不能自行愈合的原因主要是()

A.原始感染灶的存在

B.瘘管周围形成疤痕组织及引流不畅

C.外口存在细菌异物侵入,反复感染

D.结核性肛瘘或伴有糖尿病

答案

参考答案:A, B, C, D

阅读理解

阅读理解。

Dear Economist,

     My newlywedded wife and I are deeply in love. There is, however, one issue that threatens the

happiness of our marriage. I absolutely insist on shopping at Walmart. My  wife, meanwhile, would 

 rather  avoid Walmart at all costs. I have recently tried to convince her that not only does Walmart offer

the lowest prices known to man, but that the chain is also a force for good-lower prices mean better

standards of living for all consumers, increased global trade means a tighterknit (紧密团结的)

international community, and efficient operations translate into higher productivity growth for the

economy. My wife complains about poor labour policies, the fact that Walmart squeezes suppliers, and

that it puts local shops out of business.

     Who is right? Will our marriage survive?

Brian Gee

Dear Brian,

     I have to agree with you about Walmart. Jason Furman, then an economist at New York University,

now an adviser to President Obama, famously argued in 2005 that Walmart was unwittingly (不知不

觉地) a  progressive success story. The chain's prices don't much affect me(I prefer Whole Foods)but

Furman estimated  that they benefited lowandmiddleincome Americans to  the sum of around $250

billion a year.

     Walmart does not pay much, so it may depress  wages. Then again, it may increase wages by offering

jobs to the otherwise-unemployed. Either way, the benefits of low prices to Walmart shoppers far

outweigh any seemingly reasonable costs to Walmart employees. And while it is true that Walmart

employees tend to be poor, the same is true of Walmart shoppers.

     Armed with this information you can face your wife with confidence. You are sure to win the

conversation. The divorce is likely to be more argued.

     Economist

1. What concerned Brian Gee so much that he wrote the letter?

A. His wife refuses to shop at Walmart.

B. They are faced with a divorce.

C. They  can't  afford  the  costs  of  shopping  at    Walmart.

D. They are in conflict about shopping at Walmart.

2. Brian Gee's wife tends to hold the opinion that________.

A. it is wrong for Walmart to depress its employees' wages

B. consumers' lives have improved thanks to Walmart

C. Walmart's business operation increased productivity in economy

D. Walmart's business increases global trade

3. What can be inferred from the reply letter?

A. Some employees accept the low pay to keep the job.

B. Walmart appeals to only poor consumers and poor employees.

C. Employees suffer from Walmart's low prices more than consumers.

D. Jason Furman, a New York University economist,spoke highly of Walmart.

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