方程（x-3）2+4x（x-3）=0的解为______．

This was not going to be a Mother’s Day as before. A lot of things had changed in the last few months. Usually we would give Mom flowers and take her out for a big meal. We couldn’t afford it this year.

Since I was born, Mom had been able to stay at home with me. We always had enough money to go out to eat two or three times a week if I had behaved well.

All that changed in January.

I could tell that Dad was getting a little angry. Mom would tell me to be quiet and let him rest at night. He’d work later and later.

Beginning in February, Dad tried hard to find another job. But it wasn’t easy for him to find something at the level he used to. He could not bring in as much money. That’s when he asked my mom to go back to work.

After a couple of weeks, Mom found a full-time job at a bank. The pay would be a big help to the family, but now Mom would not be around as much. I didn’t like it. I now had to stay in the after-school care program instead of going home and playing in my neighborhood. Too bad was, as soon as I did get home, I had to help get dinner ready, because Mom wouldn’t get home until after 6:00. I really missed the past time.

a)        This was not going to be a Mother’s Day as before because the writer’s father wasn’t in

b)       The writer’s home used to be rich. 

c)        His family changed because his father was mad.

d)       In February, the writer’s mother started to work at a bank.

e)        The writer really wanted his mother to stay with him

为鼓励外商向我国转让技术，税法规定，对于在( )等方面提供专有技术所取得的使用费，可以减按10%的税率征收所得税。

A．农业

B．科研

C．环境保护

D．工业企业

数据库的设计通常可以分为4个步骤：需求分析、概念设计、 【4】 和物理设计。

在种子制备过程中（）会影响微生物对氧的吸收、染菌等

A、PH值

B、泡沫

C、通气

D、温度

木火刑金属于（）

A.母病及子

B.相乘传变

C.子病犯母

D.相侮传变

E.制化传变