读一读，判断正误。正确的写“T”，错误的写“F”。

      Look at the picture. This is my happy family. I have a brother and a sister. My brother works in Hainan; he

is a cashier in a big supermarket. My sister works in Beijing. She is a waitress in Beijing Hotel. My mother is a

businesswoman. She works in an office building. She is very busy. My father is a teacher; he has no classes

on Sundays and Saturdays. So he often goes shopping for my family.

( ) 1. My father is very busy. He is a businessman.

( ) 2. My mother works in an office building.

( ) 3. My sister is a waitress. She works in Beijing.

( ) 4. There are four people in my family.

( )是工程发包人要求投标人在投标时按单价合同办法分别填报分项工程单价，然后按投标人提供的工程量清单的分项工程单价汇总计算出工程总价，并按此签订工程承包合同。

A．固定总价合同

B．可调总价合同

C．固定工程量总价合同

D．估计工程量总价合同