職稱英語綜合類B級考試補全短文專項練習精選

　　閱讀下面的短文，每一篇文章中有 5處填空，文章后面有 6組文字，請根據(jù)文章的內(nèi)容選擇 5組文字，將其分別放回文章原有的位置，以恢復(fù)文章的原貌。

　　Watching Microcurrents Flow

　　We can now watch electricity as it flows through even the tiniest circuits. By scanning the magnetic field generated as electric currents flow through objects, physicists have managed ____1____. The technology will allow manufacturers to scan microchips for faults, as well as revealing microscopic defects in anything from aircraft to banknotes.

　　Gang Xiao and Ben Schrag at Brown University in Providence, Rhode Island, visualize the current by measuring subtle changes in the magnetic field of an object and ____2____.

　　Their sensor is adapted1 from an existing piece of technology that is used to measure large magnetic fields in computer hard drives.2”We redesigned the magnetic sensor to make it capable of measuring very weak changes in magnetic fields,” says Xiao.

　　The resulting device is capable of detecting a current as weak as 10 microamperes, even when the wire is buried deep within a chip, and it shows up features as small as 40 nanometers across.

　　At present, engineers looking for defects in a chip have to peel off the layers and examine the circuits visually; this is one of the obstacles ____3____. But the new magnetic microscope is sensitive enough to look inside chips and reveal faults such as short circuits , nicks in the wires or electro migration — where a dense area of current picks up surrounding atoms and moves them along. “It is like watching a river flow,” explains Xiao.

　　As well as scanning tiny circuits, the microscope can be used to reveal the internal structure of any object capable of conducting electricity.3 Fpr example, it could look directly at microscopic cracks in an aeroplane’s fuselage, ____4____. The technique cannot yet pick up electrical activity in the human brain because the current there is too small, but Xiao doesn’t rule it out4 in the future. “I can never say never,” he says.

　　Although the researchers have only just made the technical details of the microscope public, it is already on sale,5 from electronics company Micro Magnetics in Fall River, Massachusetts. It is currently the size of a refrigerator and takes several minutes to scan a circuit, but Xiao and Schrag are working ____5____. A to shrink it to the size of a desktop computer and cut the scanning B to making chips any smaller C to take tiny chips we require

　　D to picture the progress of the currents

　　E converting the information into a color picture showing the density

　　F faults in the metal strip of a forged banknote or bacteria in a waterDEBFA

　　A to shrink it to the size of a desktop computer and cut the scanning

　　B to making chips any smaller

　　C to take tiny chips we require

　　D to picture the progress of the currents

　　E converting the information into a color picture showing the density

　　F faults in the metal strip of a forged banknote or bacteria in a water

[職稱英語綜合類B級考試補全短文專項練習精選]相關(guān)文章：

1.2017年職稱英語綜合類B級補全短文專項練習

2.2017年職稱英語綜合類B級專項練習（補全短文）

3.職稱英語綜合類B級考試補全短文練習題

4.2017年職稱英語綜合類B級補全短文練習及答案

5.2017年職稱英語理工類C級補全短文專項練習

6.職稱英語綜合類學習資料補全短文練習9

7.2016年職稱英語《綜合類》補全短文練習題

8.2016年職稱英語綜合類補全短文練習

9.職稱英語綜合類學習資料補全短文練習7

10.職稱英語綜合類學習資料補全短文練習1

【職稱英語綜合類B級考試補全短文專項練習】相關(guān)文章：

高考英語專項練習答案05-24

英語六級考試選詞填空專項練習題01-12

職稱英語理工類B真題及答案10-25

英語專四詞匯語法專項練習題09-06

英語b級作文范文（通用12篇）06-08

高考數(shù)學專項預(yù)測練習題及答案09-03

英語四級短文翻譯技巧09-30

英語四級閱讀理解練習題01-20

六級英語閱讀理解練習附答案解析03-28

大學英語四級翻譯練習題10-18