把60支铅笔分成几堆，下面（ ）的分法得到的堆数最少． A．每3支一堆 B．每4支一

语法填空。

     阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适

当的词或使用括号中词语的正确形式填空。

     One day a young man was standing in the middle of the town proclaiming(宣告) that he had the

most beautiful heart in the whole valley. A large crowd   1   (gather), and they all admired his heart

for it was perfect.

     Suddenly, an old man appeared and said, "Why, your heart is not nearly as beautiful as 2." The

crowd and the young man looked at the old man's heart, which was full of scars. It had places where

pieces had been removed and other   3  (piece) put in, but they didn't fit quite right, and there were

several jagged(锯齿状的) edges. In fact, in some places there were deep gouges(沟槽) where

whole pieces were   4 (miss).

     The young man laughed. "Comparing your heart with mine, mine is perfect and yours is a mess

of scars."

     "Yes," said the old man, "Yours looks perfect   5   I would never trade with you. You see, every

scar represents a person to 6  I have given my love. I tear out a piece of my heart and give it to them,

and often they give me a piece of their heart that fits into the empty place in my heart. But because the

pieces aren't exact, I have some rough edges, which I cherish, because they remind me of   7   love

we shared. Sometimes I have given pieces of my heart away, and the other person hasn't returned a

piece of his or her heart   8   me. These are the empty gouges. Although these gouges are painful,

they stay open,   9   (remind) me of the love I have for those people. So now do you see   10   true

beauty is?"

以大城市为中心来考察城市化现象，存在着( )两种类型的城市化。

A．外延和飞地

B．向心与离心

C．景观和职能

D．积极和消极

镇痛作用在于其控制P物质的释放及其后引起的神经源性疼痛的药物（）

A.阿片类

B.5-HT对抗剂

C.巴氯芬

D.可乐定

E.卡马西平

砖及砌块是砌筑墙体的主要材料，如果需要抗压强度达到MU30的砌筑材料，可选择( )。

A．混凝土空心砌块

B．蒸压灰砂砖

C．烧结多孔砖

D．烧结空心砖

读图及材料，回答问题。

材料一：俄罗斯的天然气通过铺设的“南溪”管道输往南欧。该管线从俄罗斯南部穿过黑海海底至保加利亚后，穿越巴尔干半岛经希腊通往意大利南部．

材料二：石油城克拉玛依市地处交通要冲，区位优势明显，有丰富的自然和人文景观。

简要归纳A、B两阴影区域相似的主要自然地理特征。