97863000用亿作单位的近似数是10亿．______．（判断对错）_爱下问搜题

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问题解答题

97863000用亿作单位的近似数是10亿．______．（判断对错）

答案

97863000≈1亿，

所以97863000用亿作单位的近似数是10亿是错误的；

故答案为：×．

完形填空

阅读下面短文，掌握其大意，然后从21—40题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。
We have been driving in fog all morning, but the fog is lifting now. The little seaside villages are   , one by one. "There is my grandmother's house," I say,      across the bay to a shabby old house.
I am in Nova Scotia on a pilgrimage (朝圣) with Lise, my granddaughter, seeking roots for her, retracing (追溯)      memory for me. Lise was one of the mobile children,      from house to house in childhood. She longs for a sense of      , and so we have come to Nova Scotia where my husband and I were born and where our ancestors      for 200 years.
We soon     by the house and I tell her what it was like here, the memories    back, swift as the tide (潮水).
Suddenly, I long to walk again in the     where I was once so gloriously a child. It still    a member of the family, but has not been lived in for a while. We cannot go into the house, but I can still walk      the rooms in memory. Here, my mother      in her bedroom window and wrote in her diary. I can still see the enthusiastic family      into and out of the house. I could never have enough of being      them. However, that was long after those childhood days. Lise       attentively as I talk and then says, " So this is where I     ; where I belong. "
She has      her roots. To know where I come from is one of the great longings of the human     To be rooted is "to have an origin". We need      origin. Looking backward, we discover what is unique in us; learn the        of "I". We must all go home again—in reality or memory.

单项选择题 A1/A2型题

防治骨质疏松的药物可以分为（）

A.抑制骨吸收和抑制骨破坏两类

B.促进骨吸收和抑制骨破坏两类

C.抑制骨吸收和刺激骨形成两类

D.促进骨吸收和刺激骨形成两类

E.抑制骨破坏和刺激骨形成两类