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At the end of the passage the author suggests that A) it is impossible for life to

At the end of the passage the author suggests that

A) it is impossible for life to exist on planets.

B) earthlike life could only exist on a few planets.

C) life could exist on only one planet in a million.

D) life could exist on a great number of planets.

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第1题
What is offered to those who secure a lease before the end of the month?A.Lower monthly pa

What is offered to those who secure a lease before the end of the month?

A.Lower monthly payment

B.Homemade barbecue

C.One free month of rent

D.An exercise machine

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第2题
Sunny View Optical156 North Arch Street Lancaster, PA 17603Gable Anderson 913 Union Street

Sunny View Optical

156 North Arch Street

Lancaster, PA 17603

Gable Anderson

913 Union Street

Lancaster, PA 17603

August 12

Dear Mr. Anderson,

This is to (150) you that your last appointment was one year ago, and now it is time to have your eyes checked.

Please call 299-5839 to set up your appointment. Remember, Sunny View Optical is open from Monday to Friday at 10 a.m. to 7 p.m. and on Saturdays from 10 a.m. to 5 p.m. Our records (151) your doctor is Dr. Wesley Meyers.

Don't forget to book your appointment (152) the end of the month so you can save on our Back-To-School Sale that includes 40 percent off all designer frames. You can also save up to 60 percent off all sunglasses.

We look forward to seeing you again.

Best regards,

Susan Kuin

(50)

A.remind

B.reminds

C.reminded

D.reminding

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第3题
请根据短文内容,回答题。 Moderate Earthquake Strikes EnglandA moderate earthquake struck pa

请根据短文内容,回答题。

Moderate Earthquake Strikes England

A moderate earthquake struck parts of southeast England on 28 April 2007, toppling chimneys from houses and rousing residents from their beds. Several thousand people were left without power in Kent County. One woman suffered minor head and neck injuries.<br>

"It felt as if the whole house was being slid across like a fun-fair ride," said the woman.<br>

The British Geological Survey said the 4.3-magnitude quake struck at 8:19 a.m. and was centered under the English Channel, about 8.5 miles south of Dover and near the entrance to the Channel Tunnel.<br>

Witnesses said cracks appeared in walls and chimneys collapsed across the county. Residents said the tremor had lasted for about 10 to 15 seconds.<br>

"I was lying in bed and it felt as if someone had just got up from bed next to me." Said Hendrick van Eck,27, of Canterbury about 60 miles southeast of London." I then heard the sound of cracking, and it was getting heavier and heavier. It felt as if someone was at the end of my bed hopping up and down."<br>

There are thousands of moderate quakes on this scale around the world each year, but they are rare in Britain. The April 28 quake was the strongest in Britain since 2002 when a 4.8-magnitude quake struck the central England city of Birmingham.<br>

The country&39;s strongest earthquake took place in the North Sea in 193 l, measuring 6.1 on the Richter scale. British Geological Survey scientist Roger Musson said the quake took place on 28 April in an area that had seen several of the biggest earthquakes ever to strike Britain, including one in 1580 that caused damage in London and was felt in France. Musson predicted that it was only a matter of time before another earthquake struck this part of England. However, people should not be scared too much by this prediction, Musson said, as the modern earthquake warning system of Britain should be able to detect a forthcoming quake and announce it several hours before it takes place. This would allow time for people to evacuate and reduce damage to the minimum.

The biggest earthquake took place in Britain__________. 查看材料

A.in 1931

B.in 1580

C.in2002

D.in2007

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第4题
0.5atm (物理大气压) =()pa
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第5题
1bar=()pa=()Mpa。
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第6题
1mmHg=______Pa;1mmH2O=______Pa。

1mmHg=______Pa;1mmH2O=______Pa。

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第7题
PA的主要性能特点。
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第8题
声级测量时,基准声级为()

A.0μPa

B.20μPa

C.100μPa

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第9题
尾气冷却后进气柜压力()pa。
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第10题
在吸收传质过程中,它的方向和限度取决于吸收质在气液两相的平衡关系,若要进行吸收操作,则应控制()。

A.pA>pA*

B.pA=pA*

C.pA

D.pA≤pA*

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第11题
200mmH2O≈()Pa。

A.1500

B.2000

C.500

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