轨距加宽是（）位置不变。

阅读理解。

     Roberto Clemente was a great basketball player, in fact, he was a star. He could jump to catch a

ball. He could run fast . And he could hit a ball hard.

    Roberto Clemente loved children. He wanted to build a park for the children of Puerto Rico.

     In 1972, Roberto was killed in an airplane, but people did not forget him. They sent money for

the park.

     In 1975, the park was opened. Roberto Clemente's dream had come true.

     Notes:

     1. baseball  棒球  2. dream 梦想

     3. come true 实现

1. Roberto Clemente was killed in ______.

A. a car  

B. a baseball game

C. an airplane

2. This story tells about ______.

A. a kind baseball star

B. Roberto Clemente's team

C. poor children

3. In the first part of the story, what does the word "great" mean?

A. huge

B. old

C. very, very good

4. Roberto Clemente wanted to build a park because he ______.

A. wanted to play baseball

B. loved children

C. was killed

5. You can guess from the story that people ______ Roberto Clemente's dream.

A. fought

B. believed in

C. didn't like

机体内既能贮存能量又能直接供能的物质是（）

A.磷酸肌酸

B.ADP

C.ATP

D.环磷酸腺苷

E.葡萄糖

儿童鼻咽部触诊时，要用左手食指紧压患儿颊部是为了（）

A.让口张的更大，以便于检查

B.帮助固定患儿头部

C.减轻患儿的咽部反射

D.防止被患儿咬伤

E.保护患儿的口角

淮南师范学院学生的思想品德评定一般每（）进行一次。

根据下列材料，结合所学知识，完成下列问题。

材料1：山东省局部地区图

材料2：鲁西南某地生态农业系统

材料3：2011年1月，国务院正式批复《山东半岛蓝色经济区发展规划》，标志着山东半岛蓝色经济区建设正式上升为国家战略。蓝色经济区是以临港产业和海洋产业发展为特征，以科学开发海洋资源与保护生态为向导，以区域优势产业为特色，以经济、社会、文化、生态协调发展为前提，具有较强综合竞争力的经济功能区。

根据材料1，描述鲁中南地区地形特征，并说明判断依据。