汽缸进出口（）会导致双燃料发动机点火压力高。

阅读理解。

     It was one of the happiest times of my life. I was 29 and had just received my bachelor's degree,

graduating with honors despite working two jobs and being a wife and mother. My parents and

five-year-old son were in the audience when I walked onto the stage at Ashland University to get my

diploma. I was so excited and proud to be starting a teaching career and contributing more to my family's well-being.

     But when I got home that evening, there was a note from my husband written on the back of an

envelope. It basically said he had come to get his clothes and wouldn't be back. We'd been having

trouble, but the finality of that note still came as a shock. He had emptied our bank account. We were

horribly in debt. I had quit my previous jobs in expectation of interviewing for a teaching position. Plus, I

was eight months pregnant.

     I had my son, and I was about to bring a new life into the world, so despite my deep sadness, I had

to go on. The next morning, I woke up, put my feet on the floor, took a deep breath, fixed breakfast, and basically did everything I always did. I used my routine to keep me moving. After being in the military for

six years, I guess you can say I relied on my training, like all good soldiers do in tough situations. One

small step after one small step was the way I bounced back (恢复原状).

     And in the seven years since, I've continued moving forward. I got a job as a kindergarten teacher,

earned a master's degree in education, and watched my babies grow to twelve and seven. I certainly

would never have chosen to put them through this, but looking back, I'm glad it happened to me when it

did. It helped me find my voice and myself a lot sooner. It helped me grow independent, confident, and

strong-things I'm hopefully instilling (灌输) now in my children.

1. After getting her bachelor's degree, the author expected to ________.

A. become a teacher    

B. be a wife and mother  

C. work two jobs      

D. get divorced

2. What do we know about the author from Paragraph 2?

A. Her husband wrote a note to congratulate her on her graduation.

B. She had just been to a job interview when her husband left her.

C. Her husband paid off all the debts from the bank.

D. She was going to have another baby soon.

3. The author's hardships in life made her ________.

A. become confident and independent

B. work harder in the kindergarten

C. use her routine to move forward

D. feel pleased with what happened to her

4. It can be inferred from the passage that __________.

A. The author's parents helped her a lot

B. The author received further education later

C. The author earned a master's degree when she was 29

D. The author didn't know how to deal with marriage

5. What helped the author to pull through her hard time?

A. The divorce with her husband.

B. Her fellow soldiers in the army.

C. Her decision to find a new job.  

D. A strong mind and love for her kids.

认为消费者喜欢买高质量、多功能和特色的产品，只要产品好就会有人要，所以企业的任务是制造优良的产品并不断加以改进。这是（）。

A.生产观念

B.推销观念

C.营销观念

D.产品观念

下列哪种气体不能用于超声造影（）。

A.空气

B.二氧化碳气体

C.氧气

D.纯氮气体

E.氟碳气体

在劳务管理流程中，劳务作业人员进场的下一个流程是（）。

A.进行入场教育、班前培训

B.农民工夜校培训

C.施工作业

D.劳务结算、支付

焊缝探伤时，扫查灵敏度应在探伤灵敏度的基础上提高（）。

A、2～4dB

B、1～2dB

C、≥6dB

D、4～6dB