东西半球的分界线为（） A．0°，180 B．20°W，160°E C．20°E_爱下问搜题

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问题选择题

东西半球的分界线为（）

A．0°，180

B．20°W，160°E

C．20°E，160°W

D．40°E，140°W

答案

B

题目分析：地球仪上任何两条相对的经线（之和为180°），都组成一个经线圈，而任何一个经线圈都把可地球分成相等的两个半球，国际上习惯于用20°W和160°E这两条经线组成的经线圈，作为划分东西半球的分界线，是因为这个经线圈基本上从海洋上通过，避免了以0°和180°经线划界，将欧洲和非洲的一些国家分隔在两个半球上．

单项选择题

某患者食欲不振，消化不良，有腹水，呕血，腹壁浅静脉曲张出现海蛇头。则形成此症状的原因是（）

A.胃出血

B.肠出血

C.肺淤血

D.肝炎

E.各种原因引起的门脉高压

完形填空

My name is Margaret. I have been a professional      for twenty years. I’m always      how sorrow and pain can bring such wonderful gifts as wisdom, patience and love.   , we often get so caught up in the daily necessities and routines that we      the very things that can bring us    and teach us many valuable lessons.
I was hired to      a very special lady. I was to prepare meals for her, make sure she took her medicine     , do light housekeeping, and provide transportation to and from the market and her doctor’s appointments. All of these      were important and necessary so that she could remain     . Our focus was just that -    her to remain living independently.
It was on a cold rainy night. She turned her little head and smelt her
pillow after she had      got into bed. I observed tears running from her eyes. She said, “It’s been such a long time since I’ve had      sheets; I love the      of fresh clean sheets. I couldn’t      the sheets myself anymore. Thank you so much for changing my sheets. ”
Such a simple      as smelling clean sheets brought such great joy to her life. That was the day I      unconditional care. The next day we sat down and      what was important to her, what she liked, and how she had done things all these years. I never knew how much I would enjoy and learn from her      her life experiences with me. She was the sunshine in my life.
I’m so      for the lessons I have learned - the lessons I almost     because I forgot to slow down to look and see the beauty that was right in front of me.

D．immediately

C．comfortable

D．independent

C．carried out

D．talked about