下列说法中正确的是（ ） A．合金中至少要含有两种金属元素 B．绿色食品是指无污

Scientists have transformed men’s minds into a virtual（虚拟的）woman’s body in an experiment that could throw light upon how humans distinguish themselves form others.

In a study at Barcelona University, men wore a virtual reality headset that allowed them to see and hear the world as a female character. When they looked down, they could even see their new body and clothes.

The “body－swapping” effect was so convincing that the men’s sense of self was transferred into the virtual woman, causing them to react to events in the virtual world they were immersed（沉浸）. “This work opens up another avenue for virtual reality, which is not just to transform your sense of place, but also your sense of self,” said Mel Slater, “If you can temporarily give people the illusion that their bodies are different, then the evidence suggests it also affects their behavior and the way they think. They can have new experiences: a person who is thin can know what it is like to be fat. A man can have an experience of what it’s like to be a woman.”

During the experiment, a “female” approached and hit the face of the character another man was playing. “Their reaction was immediate,” said Slate. “They would take in a quick breath and maybe flinch（退缩）. The more people reported being in the girl’s body, the stronger physical reaction they had.” But in all cases, the feeling was temporary and lasted only as long as the study.

The study shows that our minds have a very fluid picture of our bodies. The research is expected to shed light on the puzzle of how our brain tells the difference between a part of our own body and something else in the wider world. Thus the work might improve the conditions for those who have experienced strokes by placing them in a world that helps them to use their bodies to the full again.

小题1:How can a man’s mind get into a woman’s body?

A．by distinguishing themselves from women

B．by taking part in an activity actively

C．by wearing a special device（设备）

D．by transforming his sense of place小题2:Of the following statements, which we can’t infer from the passage?

A．Men in the experiment can temporarily have the wrong feeling that they are women.

B．When hit, the men in the virtual world will react angrily to it.

C．As soon as the experiment is finished, the men will return to the normal state

D．Probably, this study can be applied to medical fields and benefit humans.小题3:What is the author’s intention of writing this passage?

A．to introduce an interesting and advanced study

B．to inform us of the latest development of virtual reality

C．to illustrate the importance of virtual reality

D．to build up our confidence to fight stroke

塑料门窗工程中，门窗框与墙体间缝隙应采用()材料填嵌。

A．水泥砂浆

B．水泥白灰砂浆

C．闭孔弹性材料

D．油麻丝

中气下陷，食少便溏，短气乏力，面目浮肿，小便不利者，宜首选的药物是（）

A.白术

B.黄芪

C.升麻

D.党参

E.山药

药品质量监督检验中复核检验的目的是( )

A．为了加强对药品质量的宏观控制
B．为了监督药品生产企业按药品标准生产合格药品
C．为了公正地判定药品的质量合格性
D．为了给药品生产企业提供药品的技术服务
E．为了证明原检验数据和结果的可靠性和真实性

下列各项中属于被动免疫制剂的是（）

A.抗毒素

B.类毒素

C.灭活疫苗

D.丙种球蛋白

E.特异性丙种球蛋白