促使钻头破碎井底岩石的工具是（）。A、方钻杆 B、钻柱 C、钻井液 D、钻机

We’ve  made it a rule that ___________ comes home first cooks supper for the whole family.

A．whichever

B．whatever

C．who

D．whoever

对于弥散性泛细支气管炎的说法哪项是错误的（）

A.常伴发鼻窦炎、鼻息肉

B.病变发生于呼吸性细支气管

C.不伴有喘息及活动后气短

D.肺部可闻及小水泡音和捻发音

E.胸部X线片呈多发性弥散性小结节影

项不是本病的并发症

A．肠梗阻

B．肠紊乱

C．肠道出血

D．腹膜炎

E．结肠癌

阅读理解。

     It was graduation day at the university where I work and a beautiful day quite unlike the first graduation.

I attended as a young professor. On that cold day years ago, as we watched the students walking into the

hall, one of my colleagues turned to me and said, "Graduation will be one of the happiest and one of the

saddest time of your life." At my inquiry, he answered, "Because the students you have gotten to know have

to leave."

     As years went by, my previous confusion about my colleague's words no longer existed. When I came

across naughty students, I have had to rethink why I chose to be a teacher. It obviously isn't the money.

Once a former computer science student of mine called me, asking me if I wanted to have a change. He was

working at Nintendo Corporation. His salary was higher than my current one, though I have more education

and have worked for over a decade. With my programming skills, he said he could get me hired I thanked

him, but declined his kind offer.

     A few days before this current graduation, while working on final grades, I found a note a student had

slipped in with her homework. She thanked me for being her teacher and said the things she had learned in

my class-not about math, but about life-would be things she would remember long after the math skills had

faded away. As I finished reading, I remembered why I had become a teacher.

     Now, on this sunny graduation day, as I again observed the sea of blue hats and gowns, I did so with

renewed dedication (奉献) and a deeper sense of satisfaction-I will always be grateful that I am a teacher.

1. Hearing his colleague's description of graduation for the first time, the author _____. [ ]

A. quite agreed with his colleague

B. was very puzzled

C. thought it very funny

D. was very sad

2. The computer science student called up the author because he _____.[ ]

A. wanted to inform the author of his present job

B. tried to persuade the author to work with him

C. wanted the author to share his joy and satisfaction

D. thought the author wasn't fit to be a teacher

3. The underlined part blue hats and gowns refers to _____. [ ]

A. university colleagues

B. graduates' clothes

C. life memories

D. decorations in the hall

4. The author wrote this passage to _____. [ ]

A. express his devotion to being a teacher

B. compare two different graduation ceremonies

C. talk about the meaning of graduation

D. give advice on how to be a good teacher

5. The reason why he earns less than the computer science student is that _____.[ ]

A. he was only a young professor

B. he didn't do well in his work

C. he taught his students more about life than math

D. salaries for different careers are different

下列哪些属于分析能力的培养方法（）①调查研究②运用理论③全面分析④时时留心

A、①②③

B、②③④

C、①③④

D、①②③④