( )也称为建筑工程方案，是构成方案的实体。
A．工程比选 B．配套工程 C．运输方案比选 D．工程方案
参考答案：D
Read and choose. (根据上下文，选择句子，补充完整对话)
A. What are you going to do?
B. I feel very happy.
Amy: Hello. How are you today?
Bill: I'm very happy.
Amy: 1________
Bill: We are going to have a football match.
Amy: How do you feel when the ball into the goal？
Bill: 2________
乘数的公式表明（）
A、边际消费倾向越高，乘数就越小
B、边际消费倾向越低，乘数就越小
C、边际消费倾向越高，乘数就越大
D、边际消费倾向越低，乘数就越大
E、乘数一定是不小于1的
