在吃水果时经常会流出大量的汁液，一不小心会弄脏衣服；这些汁液_爱下问搜题

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问题选择题

在吃水果时经常会流出大量的汁液，一不小心会弄脏衣服；这些汁液主要来自（　　）

A．液泡

B．细胞膜

C．细胞质

D．线粒体

答案

A、液泡中含有细胞液，有各种味道的物质以及营养物质，如各种蔬果汁中含各种有味道的物质以及丰富的营养物质，就是来自于细胞中液泡的细胞液，符合题意．

B、细胞膜能控制物质的进出，也有保护作用，不符合题意．

C、细胞质的流动能加速细胞与外界进行物质交换，不符合题意．

D、线粒体是进行呼吸作用的场所，不符合题意．

故选：A

完形填空

“Welcome, Mary,” I said. She raised her head and looked into my eyes. The smile on my face 36 . Dear God, I thought, what   37  has entered the life of this little girl?
After settling Mary into her new desk and   38  her, I went to the headmaster. She said, “Sit down and I’ll   39  you in. Mary’s mother who loved her very much was shot and killed in her   40  one night at their house. Mary, screaming, escaped to a neighbor’s. Then the child went into   41 . She hadn’t cried or   42  her mother since.”
I returned only to discover that the children were already avoiding this “ 43 ” child. “Mary’s been hurt badly, but we can do a lot to help her,” I explained gently. Bless all children. How loving they can be   44 they understand.
In spite of our 45 , we seemed to be getting no closer to Mary and even my faith was wearing   46 . My heart ached so badly, wanting this child to come alive, to be aware of the beauty, the wonder, the fun, and even the   47  of living.
Spring approaching, children   48  to make flower baskets for room decoration. During the lunch time, a girl came hurrying to me. “Come to see Mary’s basket,” she said   49 . “You’ll never believe it!” I   50  my breath at its beauty, for it couldn’t have been the work from a child that   51 .
“Mary,” I said. “This is beautiful. How did you ever   52 ?” She looked at me with the shining eyes of any   53  little girl, saying, “My mother loved flowers.”
Thank you, God, You’ve   54  us the miracle(奇迹). I knelt and put my arms around the child. Then the tears came, slowly at first, but soon she was   55  her heart out against my shoulder. The other children had tears in their eyes, too, but theirs—like mine—were tears of joy.

A．introducing

单项选择题

代客境外理财业务中，托管人需保存商业银行的资金汇出、汇入、兑换、收汇、付汇和资金往来记录等相关资料，其保存的时间应当不少于（）年。

A.8

B.10

C.15

D.18