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Pandemic (大面积流行的 ) HINI 2009 The most active areas ofpandemic influenza transmission

Pandemic (大面积流行的 ) HINI 2009

The most active areas ofpandemic influenza transmission currently are in central and eastern Eu- rope. Focal(集中的) increases in rates during recent week were _(5l)in at least two eastern European countries. A high intensity of respiratory(呼吸的 ) disease activity with concurrent(同时存在的) circulation of pandemic influenza still _(52) in parts of southern andeastern Europe,_ (53) in Greece,Poland, and Ukraine.

In Western Europe, influenzatransmission remains _(54) and widespread, but overall dis- ease activity has peaked. All influenza viruses in Westem Europe werepandemic HIN1 2009, (55) , very small numbers of seasonal influenzaviruses, covering less than l% of allinfluenza viruses found, were reportedin Russia. In (56),limited available data indicate that active, high intensity transmission is occurring in Northern Africancountries _ (57)the Mediterranean coast.

In Central Asia, limited data _ (58)that influenza virus circulation remains active, but transmission may have recently peaked in someplaces. In West Asia, Israel,lran, and Iraq also appear to have passed their (59)period of transmission withinthe past month, though both areas continue to have some active transmission and levels of respiratorydisease activity have not yet _(60) to baseline levels. In East Asia,influenza transmission remains active but appears to be _ (61) overall. Slight increases in ILl werereported inMongoliaafter weeks of declining activity following a large peak of activity _ (62)one month age.

In North America,influenza transmission _ _(63) widespread but has declinedquickly in all countries. In thetropical regions of Central and South America and the Caribbean, influenzatransmis- sion remains geographically widespread but overall disease _(64) has been declining orremains unchanged in most parts (65)for focal increases in respiratory diseaseactivity in a few coun- tries.

A.reported

B.expected

C.marked

D.caused

提问人:网友sky082 发布时间:2022-01-06
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更多“Pandemic (大面积流行的 ) HINI 2009 T…”相关的问题
第1题
A.暴发

B.散发

C.流行

D.大流行

E.世界性大流行

一个300万人口的城市,过去每年发生伤寒患者30例左右,某年发生了300名,此种情况称为E.

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第2题
58

A.advise

B.propose

C.suggest

D.recommend

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第3题
The eternal motion of the stars fascinated him

A.long

B.never-ending

C.boring

D.extensive

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第4题
58

A.whose

B.who

C.that

D.when

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第5题
So far Bill Gates has contributed several dozen billion dollars to the charities

A.Right

B.Wrong

C.Not mentioned

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第6题
Listening Device Provides Landslide Early Warning

A device that provides early warning of a landslide by monitoring vibrations in soil is being tested

by UK researchers. Tile device could save thousands of lives each year by warning when an area should

be evacuated,the scientists say. Such natural disasters are common in countries that experience sud-

den, heavy rainfall,and can also be triggered by earthquakes and even water erosion.

Landslides start when a few particles of soil or rock within a slope start to move,but the early sta-ges can be hard to spot. Following this initial movement,"slopes can become. unstable in a matter' of hours or minutes, " says Nell Dixon at Loughborough University, UK. He says a warning system that monitors this movement "might be enough to evacuate a block of fiats or clear a road,and save lives. "

The most common way to monitor a slope for signs of an imminent landslide is to watch for chan- ges in its shape. Surveyors can do this by measuring a site directly,or sensors sunk into boreholes or fixed above ground can be used to monitor the shape of a slope. Slopes can, however, change shape without triggering a landslide, so either method is prone to causing false alarms. Now Dixon's team has developed a device that listens for the vibrations caused when particles begin moving within a slope.

The device takes the form. of a steel pipe dropped into a borehole in a slope. The borehole is filled in with gravel around the pipe to help transmit high-frequency vibrations generated by particles within the slope. These vibrations pass up the tube and are picked up by a sensor on the surface. Software an- alyses the vibration signal to determine whether a landslide may be imminent.

The device is currently being tested in a 6-metre-tall artificial clay embankment in Newcastle, UK. Early results suggest it should provide fewer false positives than existing systems. Once it has been carefully and thoroughly tested, the device could be used to create a complete early-warning system for dangerous slopes.

"Locations with a significant risk of landslides could definitely benefit from a machine like this, " says Adam Poulter,an expert at the British Red Cross. "As long as it doesn't cost too much. " But, Poulter adds that an early-warning system may not be enough on its own. "You need to have the hu- man communication, " he says. "Making systems that get warnings to those who need them can be dif-ficult. "

What does "Such natural disasters" in the first paragraph refer to?

A.Sudden, heavy rainfall

B.Earthquakes

C.Water erosion

D.Landslides

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第7题
Becauseadministering the whole company, he sometimes has to work around the clock

A.adjusting

B.evaluating

C.engaging

D.managing

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第8题
62

A.them

B.him

C.us

D.you

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第9题
65

A.support

B.aid

C.assist

D.help

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