合金流动性与下列哪个因素无关（） A.合金的成份 B.合金的结晶特征 C.过热温度

乳腺癌局部皮肤凹陷，其机制是

A． * * 皮下淋巴管被癌细胞堵塞

B．癌肿侵及乳管使其堵塞

C．乳腺癌合并周围组织炎性水肿

D．癌肿及皮肤浸润

E．乳腺癌侵及皮下Cooper韧带，使其收缩

It was an autumn morning shortly after my husband and I moved into our first house. Our children were upstairs unpacking，and I was looking out of the window at my father moving around mysteriously on the front lawn. “What are you doing out there?” I called to him.

He looked up, smiling. “I’m making you a surprise.’’ I thought it could be just about anything. When we were kids, he always created something surprising for us. Today, however, Dad would say no more ，and caught up in the business of our new life ，I eventually forgot about his surprise.

Until one gloomy day the next March when I glanced out of the window，I saw a dot of blue across the yard. I headed outside for a closer look. They were crocuses (番红花）throughout the front lawn 一 blue, yellow and my favorite pink ，with little faces moving up and down in the cold wind. I remembered the things Dad secretly planted last autumn. He knew how the darkness and dullness of winter always got me down. What could have been more perfectly timely to my needs?

My father’s crocuses bloomed (开花）each spring for the next five seasons, always bringing the same assurance： Hard times are almost over. Hold on, keep going, and light is coming soon.

Then a spring came with only half the usual blooms and the next spring there were none. I missed the crocuses ，so I would ask Dad to come over and plant new bulbs. But I never did. He died suddenly one October day. My family were in deep sorrow, leaning on our faith.

On a spring afternoon four years later, I was driving back when I felt depressed. It was Dad’s birthday, and I found myself thinking about him. This was not unusual — my family often talked about him, remembering how he lived up to his faith. Suddenly I slowed as I turned into our driveway. I stopped and stared at the lawn. There on the muddy grass with small piles of melting snow ，bravely waving in the wind, was one pink crocus.

How could a flower bloom from a bulb more than 18 years ago, one that hadn’t bloomed in over a decade? But there was the crocus. Tears filled my eyes as I realized its significance.

Hold on, keep going, and light is coming soon. The pink crocus bloomed for only a day, but it built my faith for a lifetime.

小题1:According to the first three paragraphs, we learn that ______.

A． it kept bothering the author not knowing what the surprise was

B． the author was unpacking when her father was making the surprise

C． it was not the first time that the author’s father had made a surprise

D． the author knew what the surprise was because she knew her father小题2:Which of the following statements is NOT true according to the passage?

A． The author usually felt depressed in the season of winter.

B． The author’s father planted the crocuses to lift her low spirits.

C． The author often thought about her father after he died.

D． The crocuses bloomed each spring before her father died.小题3:The author’s father should be best described as ______.

A． a part-time worker who loved flowers

B． a kind-hearted man who lived with faith

C． a full-time gardener with skillful hands

D． an ordinary man with doubts in his life小题4:What can be the best title for the passage?

A． Crocuses — My Source of Faith

B．Crocuses— Father’s Surprise

C． A Pink Crocus — My Memory

D．Crocuses in Blossom — My Favorite

该病人治疗过程中不能应用的药物是()

A．安坦

B．苯甲托品

C．美多巴

D．甲基多巴

E．金刚烷胺

描述老年人口比重不正确的是（）

A.老年人口比重指65岁及以上的人口占总人口的比例

B.可作为划分人口类型的指标，该指标在7%以上的为老年型人口

C.老年人口比重越大，表明人口越老年化

D.人口的出生率越低、寿命越长，则老年人口比重越高

E.该指标不能反映人群的健康水平

运输过程中，平巷跟车人员应保持在车后（）米以外。

A、3

B、2

C、4

D、5