简述活性污泥法的基本工艺流程

根据增值税法律制度的规定，下列各项业务的处理方法中，不正确的有()。

A、纳税人销售货物或提供应税劳务，采用价税合并定价并合并收取的，以不含增值税的销售额为计税销售额

B、纳税人以价格折扣方式销售货物，不论折扣额是否在同一张发票上注明，均以扣除折扣额以后的销售额为计税销售额

C、纳税人采取以旧换新方式销售货物，以扣除旧货物折价款以后的销售额为计税销售额

D、纳税人采取以物易物方式销售货物，购销双方均应作购销处理，以各自发出的货物核算计税销售额并计算销项税额，以各自收到的货物核算购货额并计算进项税额

阅读理解。

     Paris has a beautiful name, the City of Lights. Do you know what it means? Many beautiful buildings

are lighted (照亮) at night. The streets are very bright. When you drive in Paris, you must not turn on

your headlights (汽车前灯) even after dark.

     Paris is full of life all day and all night. But this is not the only reason for its beautiful name. For

hundreds of years, Paris has been the centre (中心) of science (科学) and art (艺术).

     Many scientists (科学家) and artists (艺术家) have come to study here. For this reason also, people

call it the City of Lights.

1. Paris is the capital (首都)of _____.

A. America      

B. Japan        

C. France        

D. China

2. The streets are very bright at night because (因为) _____.

A. you turn on your headlights    

B. it's in the day

C. many buildings are lighted      

D. it's beautiful

3. The City of Lights means(意思是) _____.

A. the streets are very bright            

B. Paris is full of life all day and all night

C. Paris is the centre of science and art    

D. both B and C

4. Which of the following is right?

A. There are many cars in Paris.    

B. Paris is a beautiful name of a girl.

C. Paris is dark at night.          

D. Many people like coming to Paris.

5. What does"study"mean?

A. 写生        

B. 学习        

C. 打猎        

D. 发明

对于有两种出厂价的设备，在计算设备原价时，一般按（）计算。

A.带有备件的出厂价

B.不带有备件的出厂价

C.订货合同价

D.交货价

论述厂用电负荷的分类内容。

降水对航空器有哪些影响？