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chemical group has the highest per share according to the report.A Mitsubishi Petro

chemical group has the highest per share according to the report.

A Mitsubishi Petrochemical B Shin-Etsu C Mitsui Petrochemical Industries

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发布时间：2020-09-09

更多“chemical group has the highest per share according to the report.A Mitsubishi Petro”相关的问题

第1题

______ chemical group has the highest per share according to the report.A．Mitsubishi Petro

______ chemical group has the highest per share according to the report.

A．Mitsubishi Petrochemical

B．Shin-Etsu

C．Mitsui Petrochemical Industries

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第2题

__________chemical group has the highest per share according to the report． A.Mitsubishi

__________chemical group has the highest per share according to the report．

A.Mitsubishi Petrochemical

B.Shin—Etsu

C.Mitsui PetrochemicaI lndustries

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第3题

The research was done by a Dr. Griffiths in England. He compared the behavior. of 15 regul

ar gamblers (赌徒) with those of 15 non-regular gamblers before and after they gambled. Both groups had increased heart rates (心率) during gambling because t was exciting. But the regular gamblers' heart rates went down almost straight after to game, while the non-regulars remained excited and had increased heart rates for longer.

When the heart beat increases, the body produces chemicals called endorphins which make you feel good. Dr. Griffiths thinks that regular gamblers lose this good feeling soon after a game and need to play again quickly to regain the pleasure.

He has also discovered that regular gamblers have different psychological reactions (心理反应) from non-regular gamblers. In an experiment where regular and non-regular gamblers thought aloud while playing, regular gamblers had far more unreasonable thoughts. In their minds they turned losses into near-wins. Dr. Griffiths thinks that nearly winning gives the gambler a high n the same way that a win would do.

Based on Dr. Griffiths' research, doctors suggest that one way to help regular gamblers to give up gambling is to give them beta-blockers — drugs that stop them getting a high in the first place.

Dr. Griffiths' research helps you find out______

A．which group of gamblers played the game better

B．a chemical to increase gamblers' heart beat

C．a way to help gamblers give up gambling

D．when gamblers should be given drugs

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第4题

Researchers conducted an experiment using freshly slaughtered ostriches to prove thatA．sof

Researchers conducted an experiment using freshly slaughtered ostriches to prove that

A．soft tissues pre-soaked in blood and put in saline solution won"t disappear.

B．reactive ions interact with organic tissues to form. abnormal chemical bonds.

C．iron from blood cells has great influence on the preservation of animal tissues.

D．proteins tied in knots are unrecognizable to bacterias that would consume them.

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第5题

A．He hasn't been in a play for a long time.B．He has to rearrange his evening schedule.

A．He hasn't been in a play for a long time.

B．He has to rearrange his evening schedule.

C．He might not like the way the group works.

D．His schoolwork has taken up most of his time.

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第6题

Childhood exposure to a group of chemicals, which are used widely in a variety of products

, including water-resistant clothing and microwave popcorn, could reduce the effectiveness of common vaccines, a new study has found. Researchers at the Harvard School of Public Health in Boston looked at over 580 children and found that those who had higher concentrations of these perfluorinated(全氟化的)compounds(PFCs)in their blood had lower immune responses to diphtheria(白喉)and tetanus(破伤风)vaccinations. An insufficient immune response to a vaccine can mean a child is actually vulnerable to catching a disease even though they have been vaccinated against it, the researchers said. " When we take our kids to the doctors office to get their shots, we expect that the vaccines are going to work. What we found was that there was an increasing risk that they didnt work if the kids had been exposed to the PFCs," study author Philippe Grand-jean was quoted as saying by Live Science.

What makes the childrens common vaccines less effective according to the new study？

A．The exposure of chemicals they used in childhood.

B．The reduction of a series of chemicals in childhood.

C．Childhood consumption of chemical products.

D．Childhood contact with chemical products.

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第7题

听力原文：W: Ok, last night you were supposed to read an article a bout human bones. Are th

ere any comments about it？

M: Well, to begin with, I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless.

W: Well, that's an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.

M: Right. That's one of the things I found so fascinating about the article the way the bones repair them selves.

W: Ok. So can you tell us how the bones repair them selves.

M: Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that' the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.

W: Very good. This is a very complex process. In fact, the scientists who study human bones don't completely understand it yet. They are still trying to find out how it all actually works. Specifically, be cause sometimes after the first group of ,cells leaves a hole in the bone tissue, for some reason, the second group doesn't completely fill in the hole. And this can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken.

M: Ok, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time. That'll prevent the disease from ever occurring.

(23)

A．How bones help the body move.

B．How bones continuously repair themselves.

C．The chemical composition of human bones.

D．Two different types of bones in the human body.

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第8题

Cigarettes leave you with more than a smoky scent on your clothes and fingernails. A new

study has found evidence tobacco 【M1】______ use can chemically modify and effect the activity of genes known 【M2】______ to increase the risk of developing cancer. The finding may give researchers a new tool to assessing cancer risk among people who 【M3】______ smoke. DNA isnt destiny. Chemical compounds that affect the functioning of genes can bind to our genetic material, turning certain genes on or of. These so-called epigenetic modifications 【M4】______ can influence variety of traits, such as obesity and sexual 【M5】______ preference. Scientists have even identified specific epigenetic patterns on the genes of people who smoke. None of the modified genes has a direct link to cancer, therefore, making it unclear 【M6】______ whether these chemical alterations increase the risk of developing the disease. In the new study, publishing in Human Molecular Genetics, 【M7】______ researchers analyzed epigenetic signatures in blood cells from 374 individuals enrolled in the European Prospective Investigation into Cancer and Nutrition. EPIC, which its known, is a massive 【M8】______ study aimed at linking diet, lifestyle, and environmental factors to the incident of cancer and other chronic diseases. Half of the 【M9】______ group consisted in people who went on to develop colon or breast 【M10】______ cancer 5 to 7 years after first joining the study, whereas the other half remained healthy.

【M1】

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第9题

A．He has to rearrange his evening schedule.B．His schoolwork takes up most of his time.

A．He has to rearrange his evening schedule.

B．His schoolwork takes up most of his time.

C．He hasn't been in a play for a long time.

D．He might not like the way the group works.

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第10题

__________ chemical group is not explained in detail in this report． A.Shin—Etsu

__________ chemical group is not explained in detail in this report．