问题 单项选择题

下面关于AWG型OMU说法正确的是()。

A.制造上要求非常精密,不适合大批量生产,往往在实验室的科学研究中应用较多。

B.结构紧凑,插损小,是光传送网络中实现合分波的优选方案。

C.制造成本低,缺点是引入损耗大

答案

参考答案:B

阅读理解

阅读理解。

     A newly-wed couple on a four-month honeymoon were hit by six natural disasters, including the Australian

floods, Christchurch earthquake and Japanese tsunami.

     Stefan and Erika Svanstrom left Stockholm, Sweden, on December 6 and were immediately stranded in

Munich, Germany, due to one of Europe's worst snowstorms. Stefan Svanstrom and Erika Svanstrom.

     Travelling with their baby daughter, they flew on to Cairns in Australia which was then struck by one of

the most tremendous cyclones (龙卷风) in the nation's history. From there, the couple, in their 20s, were

forced to shelter for 24 hours on the cement floor of a shopping centre with 2,500 others. "Trees were being

knocked

over and big branches were scattered across the streets," Mr Svanstrom told Sweden's Express newspaper.

"We escaped by the skin of our teeth," said Svanstrom.

     They then headed south to Brisbane but the city was experiencing massive flooding, so they crossed the

country to Perth where they narrowly escaped raging bush fires. The couple then flew to Christchurch, New

Zealand, arriving just after a massive magnitude 6.3 earthquake destroyed the city on February 22.

     Mrs. Svanstrom said, "When we got there the whole town was a war zone." "We could not visit the city

since it was completely blocked off, so instead we travelled around before going to Japan."

     But days after the Svanstroms arrived, Tokyo was rocked by Japan's largest earthquake since records

began. "The trembling was horrible and we saw roof tiles fly off the buildings," Mr. Svantrom said. "It was like

the buildings were swaying back and forth." The family returned to Stockholm on March 29 after a much

calmer visit to their last destination China.

     But Mr. Svanstrom, who also survived the destructive Boxing Day tsunami that hit southeast Asia in 2004,

said the marriage was still going strong. He added, "I know marriages have to endure some trials, but I think

we have been through most of them."

     "We've certainly experienced more than our fair share of catastrophes, but the most important thing is that

we're together and happy."

1. How many countries did the couple visit during their honeymoon?

A. 6.

B. 5.

C. 4.

D. 3.

2. What's the right order of the following things according to the passage?

a. The couple headed south to Brisbane.

b. The couple flew to Cairns.

c. The couple flew to Christchurch.

d. The couple were stranded in Munich.

A. a-b-c-d

B. a-c-b-d

C. d-b-c-a

D. d-b-a-c

3. By saying "We escaped by the skin of our teeth.", Mr. Svanstrom meant that _____.

A. The cyclones was tremendous

B. They escaped from the cyclones easily.

C. They had a narrow escape from the cyclones

D. There was something wrong with their teeth

4. According to the last two paragraphs, which word can best describe Mr. Svanstrom?

A. ambitious.

B. enthusiastic

C. considerate

D. optimistic

单项选择题