以鸡新城疫为例，试述如何控制或消灭家禽烈性传染病？

Questions 63 to 67 are based on the following passage: ( 10分 )　　Architecture is the art or science of designing and constructing buildings with durable materials following certain canons.　　Historically, architecture has followed a succession of recognizable styles that may, for example, be identified as Gothic, Baroque, or Neo-Classical; or it has a specific style associated with a particular culture, such as Greek, Roman, or Egyptian.　　Architectural style, even if it is a country house, factory, hotel, airport, or religious building, reflects the values as well as the needs of the society that produces it. However, it is governed not only by taste and aesthetic interest but also by many practical considerations.　　The availability of suitable materials is closely linked to the development of skills and influenced the shapes of buildings. Carpentry developed in areas of the world that were thickly forested. Although it has become scarcer, timber remains an important building material.　　In other areas, stone and marble were chosen for important monuments because they are fireproof and durable. Stone is also a sculptural material; stone architecture was often integral with stone sculpture. The use of stone has declined today because a number of other materials, such as glass, steel, and concrete are more economical to use and assemble.　　In regions where both timber and stone were scarce, earth itself was used as a building material. Mud or clay was compact into walls or made into bricks that were dried in the sun. Later, bricks were baked in kilns, which gave them greater durability.　　Building with stones or bricks is called masonry. The elements cohere through sheer gravity orthe use of mortar. The Romans found a natural cement that, combined with insert substances, produced concrete. In the early 19th century a truly waterproof cement, the key ingredient of modem cement, was developed. So, it is said that Romans are great contributor to the development of architecture.

According to the article, which of the following statements is NOT true

A．The discovery of new building materials will influence the development of building skills.

B．Stone is both a building material and a sculptural material.

C．In the modern world, more and more other materials have replaced stone and timber asbuilding materials.

D．If an area is short of stone or timber, people usually use bricks as building materials.

下列各项，肺结核的好转期表现是（）

A.空洞闭合或缩小

B.病变较前扩大

C.新发现的病变

D.痰菌连续阴性1年

E.空洞较前增大

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下列关于平均速度和瞬时速度的说法中正确的是（）

A.做变速运动的物体在相同时间间隔里的平均速度是相同的

B.在匀速直线运动中，平均速度与瞬时速度相等

C.平均速度就是初末时刻瞬时速度的平均值

D.某物体在某段时间里的瞬时速度都为零，则该物体在这段时间内静止

商业助学贷款需要借款申请人提供家庭困难的证明材料。( )