根据《保险营销员管理规定》，保险营销员经保险公司授权进行保险产品销售及相关服务的活动

下列各句中没有语病的一项是[ ]

A．将于2013年建成的京沪高速铁路，会大大提高列车的运行速度、载货量和乘客人数，进一步缓解京沪间的交通运输压力。

B．教育行政部门监管不力，致使一些学校在义务教育阶段借口以办特色班为名，向家长收取高额的费用。

C．水果营养丰富，但是它的表面常常黏附着对人体有害的细菌和农药，所以食用水果应该洗净削皮较为安全。

D．政府要特别关心和帮助解决低收入家庭住房问题，建立健全廉租房制度，改进和规范经济适用房制度。

（）表现了价值规律在保险市场上的特殊作用。

A.决定保险商品的净费率

B.决定保险商品的毛费率

C.自发调节保险商品的净费率

D.自发调节保险商品的附加费率

运动员双手握住竖直杆匀速攀上和匀速滑下，他所受的摩擦力分别为F₁和F₂，那么[ ]

A．F₁向下，F₂向上，且F₁ = F₂

B．F₁向下，F₂向上，且F₁ ＞ F₂

C．F₁向上，F₂向上，且F₁ = F₂

D．F₁向上，F₂向下，且F₁ = F₂

Face masks are commonly used in ceremonies and performances. They not only hide the real face of the mask wearer but they often evoke powerful emotions in the audience—danger, fear, sadness, joy. You might think, because so many things vary cross-culturally, that the ways in which emotions are displayed and recognized in the face vary too. Apparently they do not. Recent research on masks from different cultures supports the conclusion that masks, like faces, tend to represent certain emotions in the same ways. We now have some evidence that the symbolism used in masks is often universal.

The research on masks builds on work done by anthropologists, who used photographs of individuals experiencing various emotions. These photographs were shown to members of different cultural groups who were asked to identify the emotions displayed in the photographs. Emotions were identified correctly by most viewers, whatever the viewer’s native culture.

Coding schemes were developed to enable researchers to compare the detailed facial positions of individual portions of die face (eyebrows, mouth, etc.) for different emotions. What exactly do we do when we scowl? We contract the eyebrows and lower the corners of the mouth; in geometric terms, we make angles and diagonals (斜线) on our faces. When we smile, we raise the corners of the mouth; we make it curved.

Psychologist Joel Arnoff and his colleagues compared two types of wooden face masks from many different societies—masks described as threatening versus masks associated with nonthreatening functions. As suspected, the two sets of masks had significant differences in certain facial elements. The threatening masks had eyebrows and eyes facing inward and downward and a downward-facing mouth. In more abstract or geometrical terms, threatening features generally tend to be angular or diagonal and nonthreatening features tend to be curved or rounded, a face with a pointed beard is threatening; a baby's face is not. The theory is that humans express and recognize basic emotions in uniform (一致的) ways because all human faces are quite similar, skeletally and muscularly.

小题1:What does the passage mainly discuss?

A．The techniques for comparing facial expressions across cultures.

B．The photography of faces.

C．Cultural variations in mask.

D．The uniformity of facial expressions in revealing emotions.小题2:According to the passage, masks are used in performances to _______.

A．disguise the real emotions of the performers

B．cause members of the audience to have strong emotions

C．remind the audience that an illusion is being created

D．identify the cultural background of the performers小题3:What does the author mean by stating, "the symbolism used in masks is often universal"?

A．Masks are sometimes used to hide emotions.

B．Performers often need help conveying emotions to an audience.

C．Not all societies use masks in their rituals.

D．People from different cultures generally express certain emotions in similar ways.小题4:The passage mentions "baby’s face" in the last paragraph as an example of a _______.

A．typical human face

B．source of inspiration in the creation of masks

C．nonthreatening face

D．face that expresses few emotions

体温每升高1℃，基础代谢率将提高（）

A.6%

B.8%

C.11%

D.13%

E.17%