某患者，女，29岁，停经40天就诊，考虑为妊娠，HCG检查的最佳标本是（）。 A.1

阅读理解。

     Tom was not old, but he did not have much hair. His wife Grace had thick, beautiful, black hair. They had one daughter. Her name was Jane, and she was four and a half years old. There was a photo of her father in the living room, and a few days ago, Jane looked at it for a long time and then said to her mother, "Mummy, why did Dad have very little hair?"

     Grace laughed and said, "He has very little hair because he thinks a lot, Jane. He's a clever man."

     Jane looked at her mother's thick, black hair for a few seconds, and then she asked "Mum, why did you have a lot of hair?"

1. There were _____ people in Tom's family.

A. two

B. three

C. four

D. five

2. Tom had _____ hair.

A. very little

B. a little

C. few

D. a few

3. Grace had _____ hair.

A. a little

B. a lot of

C. many

D. a few

4. There was a photo of _____ in the living room.

A. her

B. her parents

C. her mother

D. her father

5. Jane wanted to know why her mother had _____ hair.

A. black

B. beautiful

C. less

D. a lot of

关于《消费者权益保护法》的适用范围，下列表述正确的是( )。

A．农民购买、使用直接用于农业生产的生产资料时不适用《消费者权益保护法》

B．农民购买、使用直接用于农业生产的生产资料，参照《消费者权益保护法》执行

C．农民的消费活动，不适用《消费者权益保护法》

D．所有消费活动均适用《消费者权益保护法》

全口义齿的试戴是在何时进行（）

A.义齿完成后

B.确定完颌位关系后

C.义齿蜡型完成后

D.排列完前牙后

E.排列完前后牙后

某图书管理系统中含有读者表和借出书籍表，两表中均含有读者编号字段，现在为了查找读者表中尚未借书的读者信息，应采用的创建查询方式是( )。

A．使用设计视图创建查询

B．使用交叉表向导创建查询

C．使用查找重复项向导创建查询

D．使用查找不匹配项向导创建查询

简述绞车二级制动的优点？