Welcome to Gold Coast Wax Museum HIGHLIG

下列描述中正确的是（）

A.Ⅰ度烧伤红肿热痛较重，可有水泡

B.浅Ⅱ度烧伤水泡小，创面红白相间

C.深Ⅱ度烧伤水泡大，创基艳红

D.深Ⅱ度烧伤可见许多粟粒大小的红色小点

E.Ⅲ度烧伤可见大量水泡

我国政府为了应对金融危机出台一系列措施，其中准备投入350000000000元救市此金额可用科学计数法表示为（    ）元。

总投资中最易变的组成部分是( )。

A．住宅投资

B．固定投资

C．存货投资

D．债券的购买

If your dog looks pleased to see you – it is probably because it loves the particular way you smell.

The odour of a familiar human apparently lingers like perfume in the animal’s brain – where it triggers an instinctive emotional response, research published yesterday reveals.

Our scent acts on a part of the canine brain associated with reward and the strongest reactions are produced by humans that pets know best, say scientists in America.

Gregory Berns, of Emory University in Atlanta, said: ‘While we might expect that dogs should be highly tuned to the smell of other dogs, it seems that the “reward response” is reserved for their humans.

'When humans smell the perfume or cologne of someone they love, they may have an immediate, emotional reaction that's not necessarily cognitive.

'Our experiment may be showing the same process in dogs. But since dogs are so much more olfactory(嗅觉的) than humans, their responses would likely be even more powerful than the ones we might have.

'It's one thing when you come home and your dog sees you and jumps on you and licks you and knows that good things are about to happen.

'In our experiment, however, the scent donors were not physically present.

Why do animals avoid pylons? Because they emit terrifying flashes of light that are INVISIBLE to humans.

Dolphins use sponges to protect their sensitive noses while foraging for food on the sea floor

'That means the canine brain responses were being triggered by something distant in space and time. It shows that dogs' brains have these mental representations of us that persist when we're not there.'

The university’s experiment - the first of its type - involved 12 dogs of various breeds who underwent brain scans while five different scents were placed in front of them.

The scent samples came from the subject itself, a dog the subject had never met, a dog that lived in the subject's household, a human the dog had never met, and a human that lived in the subject's household.

The familiar human scent samples were taken from someone else from the house other than the handlers during the experiment, so that none of the scent donors were physically present.

The results showed that all five scents elicited a similar response in parts of the dogs' brains involved in detecting smells. Responses were significantly stronger for the scents of familiar humans, followed by that of familiar dogs.

The findings, which were published in the journal Behavioural Processes, showed that dogs reacted strongest to the scent of a familiar human even when they were not there.

Pets trained as help or therapy dogs showed greater brain activity than the other dogs in the test.

Researchers say the findings could improve the way animals who assist wounded veterans or disabled people are selected.

小题1:Why does your dog look pleased to see you ?

A．because your dog wants to play with you

B．because your dog is hungry

C．because your dog wants to attract your attention

D．because your dog loves the particular way you smell.小题2:What’s the purpose of Emory university’s experiment ?

A．To study dog’s reaction while five different scents were placed in front of them.

B．To learn how to get along well with dogs

C．To know how to tell the difference between dogs

D．To improve the way animals who assist wounded veterans or disabled people are selected.小题3:According to the passage, a dog will be most interested in____.

A．familiar dogs

B．a human the dog had never met

C．a dog the dog had never met

D．familiar humans小题4:Which of the following is true according to the passage?

A．The dog’s olfactory responses would likely be even more powerful than the ones we might have.

B．In our experiment, the scent donors were physically present.

C．Dogs reacted strongest to the scent of a familiar human even when they were there.

D．Dog’s brain responses were not being triggered(引发) by something distant in space and time.

有关β氧化的叙述错误的是

A．脂肪酸氧化之前要活化为脂酰CoA
B．β氧化过程包括脱氢、加水、再脱氢和硫解
C．每一次β氧化产生比原来少2个碳原子的脂酰CoA
D．还产生乙酰CoA、FADH2和NADH各1分子
E．以上各反应都是在线粒体中进行的