问题 单项选择题

下颌前伸胎位记录的目的是

A.确定切道斜度

B.确定前伸髁道斜度

C.确定侧a-fie道斜度

D.确定上下领间的距离

E.使上下验堤均匀地接触

答案

参考答案:B

解析:解 析:从专业知识判断:髁道是指下颌运动过程中髁突在关节凹内运动的道路。下颌在做前伸运动时,髁突在关节凹内向前下方运动的道路叫前伸髁道。髁道与眶耳平面的夹角称髁道斜度。转移髁道斜度时要借用前伸胎关系记录,故该题选答案b.切道斜度可在排列上下前牙中确定,或先在袷架上定切道斜度,后使前牙切道斜度依之而定,两种作法均可。

选择题
阅读理解

Located along California’s San Andreas Fault, the city of San Francisco is likely to take precautions(预防,防备) in the event of the next big earthquake.

According to a New York Times report, emergency planners in San Francisco are not only thinking of human evacuation(撤离,疏散) plans in the event of an earthquake, but also of how to care for pets during a natural disaster. Ideally, the planners will be able to train pet-disaster responders who work to evacuate dogs, cats and other household pets from the disaster site to one of the 125 temporary animal shelters that will be set up or, if the pet is injured, it will be brought to an emergency animal medical unit where there will be people on hand to tend to the pet’s injury. The city’s “no-pets-left-behind” policy results from the great number of pet deaths during the destruction of Hurricane Katrina.

As emergency responders arrived to rescue people isolated in their homes during Katrina, hurricane victims were told that they could not take their pets along with them when evacuating; thus, many pet owners were forced to make the heart-breaking decision to save themselves while leaving their pets behind to perhaps meet their deaths.

Since then, the U.S. has passed the Pets Evacuation and Transportation Standards Act of 2006, allocating federal funds for animal disaster planning projects. Yet, not all counties are as progressive as San Francisco has been in the effort to protect pets in the event of a natural disaster. Pets are after all, a large part of San Francisco’s population — overnumbering the number of school age children in the city.

Over the last three years, San Francisco has received $350,000 in federal funds designated to animal disaster preparedness efforts in order to protect animals in the case of a disaster such as an earthquake. The city is still working on obtaining $300,000 to pay for an emergency animal unit. Until then, animal lovers in San Francisco will continue to work to ensure that pets are never an afterthought when it comes to rescues during earthquakes or other life threatening situations.

小题1:We learn from the second paragraph that ______.

A.emergency planners in San Fransico only consider human evacuation plans in a disaster

B.emergency planners in San Fransico only think about pet evacuation plans during a disaster

C.the safety of both humans and pets in a disaster is taken seriously

D.emergency medical units will be used only for humans小题2:What do we know about Hurricane Katrina?

A.A great number of pets died during Hurricane Katrina.

B.San Francisco’s “no-pets-left-behind” policy had been made before Hurricane Katrina.

C.The pet owners chose to sacrifice themselves in order to save their pets.

D.Emergency responders failed to rescue the hurricane victims.小题3:Which of the following statements is NOT TRUE according to the passage?

A.San Fransisco has made great effort to protect pets in a natural disaster.

B.The number of school age children in San Fransisco is smaller than that of pets.

C.The U.S. government has spent money on animal disaster planning projects.

D.All the countries are in the effort to protect pets in a natural disaster.小题4:The underlined word “designated” in the last paragraph most probably means ______.

A.loaned

B.allocated

C.replaced

D.obtained小题5:What’s the main idea of this passage?

A.How to take precautions in the earthquake.

B.Human evacuation plans in the earthquake.

C.Taking steps to care for pets during a natural disaster.

D.How to train pets to escape from a disaster.