因滚动轴承游隙过小，造成碎煤机轴承温度超过80℃，处理方法为（）。A.检修轴承； B

以下属于个人耐用消费品的是( )。

A．单价1500元的家用电器

B．价值3000元健身器材

C．汽车

D．房屋

阅读理解。

     My father works for the Coca-Cola Company, and as a result of that, I am always changing schools to go

to new places for his job. Right before I moved to California, I had lived in Ohio for six years. I had many

close friends, and it was very hard for me to be able to leave them. When I first moved, my friends and I

talked all the time.

     Then I noticed I started to call my friends less and less each week as I had begun to make friends out here

in California. It came to the point where I never called any of my friends from Ohio anymore, because I felt

that I did not need to talk to them anymore.

     After one of my friends from Ohio called me and told me not to forget who my real friends were, I realized

that I had become a completely (完全地 ) different person. I had adapted (适应) to the new "California" ways

and completely left all of my friends who really cared about me in Ohio behind out of my life. They were the

friends that always cared for me and were there when I needed them the most and I almost let that slip away

(溜走 ).

     As soon as I realized my huge mistake, I started to make more and more calls to my friends from Ohio to

try to keep our friendships.

1. The author moved from Ohio to Califomia _____.

A. to make more friends

B. to start a new life

C. for his father's work

D. for his own study

2. The author's attitude towards friendship changed ______.

A. before he left his friends in Ohio

B. as soon as he arrived in California

C. after he made more calls to his friends in Ohio

D. after he received a friend's call from Ohio

3. What do the underlined words in the last paragraph refer to?

A. The author forgot his old friends in Ohio.

B. The author quarreled with his friends in Ohio.

C. The author disliked his friends in California.

D. The author made too many friends in California.

4. Which sentence shows the main idea of the passage?

A. A friend in need is a friend indeed.

B. Make new friends, but keep the old.

C. Books and friends should be few but good.

D. When in Rome, do as the Romans do.

大额授信客户指授信总额在一定额度以上的五级分类（）类信贷客户。

A、正常

B、关注

C、次级

D、可疑

人们在食物中经常用到味精，它的主要化学成分是( )。

A．谷氨酸钠
B．氢氧化钠
C．硝酸钠
D．甘氨酸钠

试述单子叶的分蘖与双子叶的分枝的异同？