直肠癌下缘距肛门缘5cm，但一般情况很差，应行（） A.Miles手术 B.Dixo

需求拉上的通货膨胀通常用于描述______

A．成本因素所引起的价格波动
B．某种供给因素所引起的价格波动
C．某种总需求的增长所引起的价格波动
D．经济制度调整超过了预期通货膨胀率

当我们研磨菠菜叶时，发现有绿色的汁液流出。汁液主要来自图中的(   )

A．1

B．3

C．5

D．6

In the kitchen of my mother's houses there has always been a wooden stand with a small notepad and a hole for a pencil.

I’m looking for paper on which to note down the name of a book I am recommending to my mother. Over forty years since my earliest memories of the kitchen pad and pencil, five houses later, the current paper and pencil look the same as they always did. Surely it can't be the same pencil. The pad is more modern, but the wooden stand is definitely the original one.

“I'm just amazed you still have the same stand for holding the pad and pencil after all these years.” I say to her, walking back into the living-room with a sheet of paper and the pencil. “You still use a pencil. Can’t you afford a pen?”

My mother replies a little sharply. “It works perfectly well. I've always kept the stand in the kitchen. I never knew when I might want to note down an idea, and I was always in the kitchen these days. ”

Immediately I can picture her, hair wild, blue housecoat covered in flour, a wooden spoon in one hand, the pencil in the other, her mouth moving silently. My mother smiles and says, “One day I was cooking and watching baby     Pauline, and I had a brilliant thought, but the stand was empty. One of the children must have taken the paper. So I just picked up the breadboard and wrote it all down on the back. It turned out to be a real breakthrough for solving the mathematical problem I was working on.”

This story—which happened before I was born—reminds me how extraordinary my mother was, and is also a gifted mathematician. I feel embarrassed that I complain about not having enough child-free time to work. Later, when my mother is in the bathroom, I go into her kitchen and turn over the breadboards. Sure enough, on the back of the smallest one, are some penciled marks I recognize as mathematics. Those symbols have traveled unaffected through fifty years, rooted in the soil of a cheap wooden breadboard, invisible exhibits at every meal.

小题1:Why has the author's mother always kept the notepad and pencil in the kitchen?

A．To leave messages.

B．To list her everyday tasks.

C．To note down maths problems.

D．To write down a flash of inspiration（灵感）.小题2:What is the author's original opinion about the wooden stand?

A．It has great value for the family.

B．It needs to be replaced by a better one.

C．It brings her back to her lonely childhood.

D．It should be passed on to the next generation.小题3:The author feels embarrassed for ______.

A．blaming her mother wrongly

B．giving her mother a lot of trouble

C．not making good use of time as her mother did

D．not making any breakthrough in her field小题4:What can be inferred from the last paragraph?

A．The mother is successful in her career.

B．The family members like traveling.

C．The author had little time to play when young.

D．The marks on the breadboard have disappeared.小题5:In the author's mind, her mother is ______.

A．strange in behavior

B．enthusiastic about her research

C．fond of collecting old things

D．careless about her appearance

对下列语句的分析和鉴赏有误的一项是（ ）（3分）

A．这喜悦，我们禁不住。在这一时刻，我们将这喜悦接受了！变化的世界，啼唱起平凡的颂歌，这是极度的苦难所禁不住的，是无数残损的死亡所禁不住的。（连用三个“禁不住”。第一个“禁不住”是指春天降临的喜悦突然而来，“我们”一下子承受不住，表现喜悦之强烈；第二、三两个“禁不住”是指春天的脚步、生命的气息谁都阻挡不了，抑制不住，表现春天力量之强大。）

B．我的儿子是个肩膀狭窄、脖子细长、喉结很尖的男孩子，总是笑嘻嘻的；但现在躺着的，却是一个年轻漂亮、肩膀宽阔的男人，眼睛半开半闭，仿佛不在看我，而望着我所不知道的很远的地方。（运用了肖像描写，将儿子生前与死后，记忆中的少年模样与眼前的成年模样作对比，包含着父亲无尽的悲哀，表达了对毁掉年轻生命的战争的控诉。）

C．这园中不单是处处都有过我的车辙，有过我车辙的地方也都有过母亲的脚印。（这句话采用了顶针的手法；既总结了上文，又是点睛之笔，写出了作者在地坛痛苦挣扎的时候，母爱一路相伴，最后帮助作者走出苦难，闯出人生之路的过程。）

D．可是，我真爱北平。这个爱几乎是要说而说不出的。我爱我的母亲。怎样爱？我说不出。……言语是不够表现我的心情的，只有独自微笑或落泪才足以把内心表达出来。我爱北平也近乎这个。（运用比喻的手法，说明作者对北平的爱与对母亲的爱一样，无法言传；语言朴实，写出了爱的真切与深沉。）

光缆由哪几个部分组成？简述各部分的主要作用？