问题 单项选择题

GRE序列MRI电影可显示室间隔缺损处的分流,表现为()

A.黑色血池中的中低信号血流束

B.黑色血池中的中高信号血流束

C.白色血池中的低信号血流束

D.白色血池中的中高信号血流束

E.白色血池中的混杂信号血流束

答案

参考答案:C

解析:GRE序列MRI电影可显示左右心室间的分流,表现为亮白色血池中的低信号血流束,常有利于发现小的或多发的室间隔缺损。

阅读理解

阅读理解。

     认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意:每空

格1个单词。

     White-collar workers going to great lengths for stress relief A soldier of the South Korean special attack

corps paints his eyes during a friendly Taekwondo match at a South Korean Army Base in Pochon, north of

Seoul. Stressed out white-collar workers are scaling (攀登) skyscrapers, camping out on rooftops, smashing

up restaurants, pretending to be children and even visiting cemeteries in a bid to relieve the pressure of modern

life.

     As the country's economy continues to steam ahead, once popular forms of entertainment, such as karaoke,

card games and even boxing bars, appear to be losing their appeal.

     Consider the members of Shanghai's Cat Rain club. By day, this group of young women works executive

jobs, but by night they climb buildings so they can spend the night on the roof.

      "It's a good way to release our pressure. You feel relaxed when you're sitting on the roof, looking up to

the sky and chatting with intimate (亲密的) friends," said Gong Ying, 25.

     The stress of work is not just limited to people in Shanghai.

     A recently opened restaurant in Beijing encourages customers to smash plates-as long as they are willing to

pay to replace them.

     Though there has been some debate about the extravagance (奢侈) of such services, some psychologists

say the activity reflects the desire of some white-collar workers to vent their angst.

     Some workers even appear eager to return to their childhoods. This May, hundreds of people took part in

a festival in which adults pretended to be children. It was an adults-only event, and participants could read

comics and eat sweets all day.

     Scenic places such as parks and rivers can also help people relax and put things in perspective. But a

cemetery?

     Cemetery companies in Shanghai organized visits to local graveyards for stressed-out workers in March.

The participants were taken to quiet spots in the cemetery where they could contemplate (考虑、打算) life

and their futures.

      Roof-camper Chen Bin, an IT marketing professional, said she had camped out on a rooftop about 30

times. When she's not sleeping out under the stars, she also has several other adrenalin-fueled interests, such

as downhill racing and paragliding.

      "Pressure may bring us distress, but it doesn't mean we can't find ways out," Chen says."Life should be

imaginative."

 

单项选择题