流行性腮腺炎需与哪些疾病鉴别()A．腮腺导管阻塞 B．过敏性腮腺炎 C．症状性腮腺肿

正在发声的音叉接触水面，溅起水花，这说明______．为了看到正在发声的音叉在振动，这里利用了______法．

膜性肾小球肾炎光镜病变特点是（）

A.壁层上皮细胞增生

B.内皮细胞增生

C.毛细血管壁增厚、系膜细胞和基质增生

D.脏层上皮细胞足突消失融合

E.毛细血管基底膜弥漫性增厚

下列关于法人单位与产业活动单位关系的表述中，正确的是( )。

A．产业活动单位与法人单位之间不存在隶属关系

B．位于一个地点并从事单一经济活动的法人单位同时也是产业活动单位

C．一个法人单位至少应包括两个及两个以上的产业活动单位

D．三个以上产业活动单位组成的法人单位称为多产业法人单位

阅读理解。

     Henry Ford was the first person to build cars which were cheap,strong and fast. He was able to sell

millions of models because be could produce them in large numbers at a time; that is, he made a great many

cars of exactly the same kind. Ford's father hoped that his son would become a farmer, but the young man

did not like the idea and he went to Detroit where he worked as a mechanic (机械师). By the age of 29, in

1892, he had built his first car. However, the car made in this way, the famous "Model T" did not appear

until 1908-five years after Ford had started his great motor car factory. This car showed to be well-known

that it remained unchanged for twenty years. Since Ford's time, this way of producing cars in large numbers

has become common in industry and has reduced the price of many goods which would otherwise be very

expensive.

1. Henry Ford was the man to build _____ cars. [ ]

A. cheap and strong

B. cheap and long 　　

C. fast and expensive

D. strong and slow

2. Ford was able to sell millions of cars, because _____. [ ]

A. he made many great cars

B. his cars are many 　　

C. he made lots of cars of the same kind

D. both A and B

3. The young man became a mechanic, _____. [ ]

A. which was his father's will

B. which was against his own will

C. which was against his father's will

D. which was the will of both

4. The "Model T" was very famous _____. [ ]

A. before 1908

B. between 1982 and 1908

C. before 1892

D. after 1908

5. Ford built his own car factory _____.[ ]

A. in 1903

B. in 1908

C. in 1913

D. in 1897

云石机的最大切割深度是（）

A.3.4cm

B.3.6cm

C.3.2cm

D.3.5cm