根据你对瓣膜的理解，推测当左心室射血时，心脏瓣膜开闭及血流方向是（ ） A．房室

About ten years ago, I was on a plane going west, and a young woman boarded and sat across the aisle (过道) from me. I ___21____ her for two reasons. She was very attractive, and she was holding a teddy bear about half her ____22____. I teased her by asking if she had a ___23___ for the bear. She laughed and said no.
About halfway through the flight she ___24____ over and told me she was going to Tucson to enter rehab (进行康复治疗). She ___25___ to share her life story with me. She had been working as a dancer in a nightclub. That ___26____ had led her down a dark ____27____ to drugs and alcohol. As I listened to her story. I was ____28____ at all she had gone through. I listened to all she shared and told her I was sure she was going to ____29___ it. At the end of the flight, she ___30____ me for listening to her.
A few years later, I got a ___31____ in the mail saying, “Wow, it’s been years since we met on that plane. It is ___32____ how you touched my life.” She went on to tell me that she had ____33____ to stay away from drugs, and had been working for a radio station. She felt she had achieved things she could not have ____34___ that day on the plane. We agreed to set up a time to get ___35___.
When I saw her, she was ____36____ the attractive young woman I remembered. She told me that that little ___37___ we had had turned her life around. She had boarded the plane ___38___ anything would work in her life, and my affirmation (肯定) of her as a person and of her ___39___ had given her the last bit of ___40___ she needed to work through her problems.
The young woman taught me it’s never too late to make a new start in life.

小题1:	A．found B．helped C．recognized D．noticed

小题2:	A．shape B．size C．weight D．leg

小题3:	A．name B．friend C．ticket D．cloth

小题4:	A．moved B．leaned C．looked D．pulled

小题5:	A．agreed B．learned C．continued D．refused

小题6:	A．manner B．feeling C．event D．lifestyle

小题7:	A．door B．path C．key D．point

小题8:	A．disappointed B．worried C．surprised D．blamed

小题9:	A．own B．reach C．leave D．make

小题10:

A．criticized B．avoided C．thanked D．remembered

小题11:

A．note B．word C．case D．text

小题12:

A．effective B．amazing C．easy D．clear

小题13:

A．managed B．tried C．decided D．worked

小题14:

A．realized B．produced C．required D．imagined

小题15:

A．through B．along C．together D．off

小题16:

A．never B．still C．once D．even

小题17:

A．expectation B．explanation C．information D．conversation

小题18:

A．doubting B．promising C．believing D．admitting

小题19:

A．condition B．discoveries C．criticism D．possibilities

小题20:

A．delight B．interest C．strength D．character