饲料加工中，对混合机混合均匀度变异系数的要求配合饲料和预混合饲料是不相同的，下列正确

Look at the centre circles of Diagram (图)A and Diagram B. Which of the centre circles looks larger? In fact, they are exactly the same size.

Then look at the picture on the right. What do you see? A vase? Or two faces？Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can never see them at the same time.

“What’s happening? Is something wrong with my eyes?” You may wonder at what you see. Don’t worry. Here is how it goes:

When we look at things, our eyes send messages to our brains and then our brains interpret（解读）the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “visual illusion(视觉错误)”.

Movie makers often make use of visual illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Parkand Honey I shrunk the kids just make use of visual illusions.

小题1:Why does the centre circle in Diagram A look smaller than that in Diagram B?

A．something is wrong with our eyes

B．the two circles are not the same size

C．our brains interpret the information in a wrong way

D．the two pictures change quickly from one to the other小题2: What do movie makers make use of visual illusions for ?

A．To help the actors look better

B．To make the actors much braver

C．To help the actors become stronger

D．To make the actors seem different in size小题3:In the picture below, it seems that Line AB is shorter than Line CD, but in fact Line AB is as long as Line CD.

Which paragraph can explain what has happened to our eyes?

A. The second one.

B. The third one.

C. The fourth one.

D. The sixth one.

小题4: What’s the right order according to the passage?

a. We look at things with our eyes.

b. Our brains interpret the messages.

c. Our brains tell us what we have seen.

d. Our eyes send messages to our brains.

A．a d b c

B．c a b d

C．a c d b

D．b c a d小题5:Where may this passage be from?

A．A letter

B．An English newspaper

C．A science book

D．An advertisement

从方框内选择合适的短语，完成句子。只填选项。

小题1:— When will his new novel 　　　　　　　　?

— I think readers will be able to read it next month.

小题2:— Do you know his telephone number?

— I’m sorry, but you can 　　　　 it 　　　　 in the directory (号码薄).

小题3:If you want to lose weight, you should 　　　　　　　　 high-fat food or eat less.

小题4:The doctor advised my grandpa to 　　　　　　　　 smoking because of his illness.

小题5:There are so many great cars　　　　　　　　 here that I don’t know which to buy.

小题6:The girl couldn’t 　　　　　　　　 a good answer to the question, so she tried to change the topic.

小题7:She never took a taxi, 　　　　　　　　 she could afford to.

小题8:She’s 　　　　　　　　 the chicken bones (骨头) to make soup.

小题9:He seems to be experienced in　　　　　　　　 this kind of problem.

小题10:Frank must be angry because nobody likes to be 　　　　　　　　 in public.

病灶组织的放射性分布高于正常组织

A.平面显像

B.断层显像

C.阴性显像

D.阳性显像

E.介入显像

一个人因大量出血而危及生命的时候，必须通过输血进行抢救，应以输入______为原则．任何血型的人都可以输入少量的______血；AB血型的人，除可输入O型血外，也可以输入少量的______型或______型血．

根据《支付结算办法》的规定，属于无效票据的有()。

A．更改签发日期的票据

B．更改收款单位名称的票据

C．中文大写金额和阿拉伯数码金额不一致的票据

D．更改承兑人签章的票据