Here I'd like to tell you something about my aunt Mary. She is thirty years old. She has a lot of hobbies. She usually gets up early in the morning. And then she walks her dog near the river. She sometimes likes to chat with others near her home after work. She often goes fishing on Saturdays. She loves music. She always goes to the Singing Club on Sundays. She also likes going shopping. Every time she goes to the parks on fine days. She doesn't like watching TV. She is a happy woman.

小题1:How old is Mary?

A．Thirty

B．Twenty-five

C．Twenty-two

D．Twenty小题2:What does Mary do after she gets up?

A．Goes fishing.

B．Chats with others.

C．Walks her dog.

D．Goes to the Singing Club.小题3:When does Mary often go fishing?

A．On Wednesdays.

B．On Sundays.

C．On Saturdays.

D．On Fridays.小题4:Which of the following(下面) doesn't Mary like doing?

A．Going shopping.

B．Going to the parks.

C．Going fishing.

D．Watching TV.小题5:Which is the title (标题) of the passage (文章)?

A．Mary's Work

B．A Funny Woman

C．Mary's Hobbies

D．A beautiful Woman

在买卖双方存在信息不对称的情况下，质量的商品往往将质量好的商品驱逐出市场，这种现象称为（）

A．道德风险

B．正向选择

C．逆向选择

D．外部不经济