问题 单项选择题 A1/A2型题

足月胎胎头最短的前后径线是()

A.双顶径

B.双颞径

C.枕额径

D.枕颏径

E.枕下前囟径

答案

参考答案:E

解析:双顶径为两顶骨隆突间的距离,是胎头最大横径,一般足月妊娠时平均值约为9.3cm。枕额径又称前后径,为鼻根至枕骨隆突的距离,妊娠足月时平均值约为11.3cm。枕下前囟径又称小斜径,为前囟中点至枕骨隆突下方的距离,妊娠足月时平均值约为9.5cm。枕颏径又称大斜径,为颏骨下方中央至后囟顸部的距离,妊娠足月时平均值约为12.5cm。该题考核的是胎头最短前后径,应是枕下前囟径,故选E。

选择题
阅读理解

阅读理解

                                                                  Peanuts to This

     Proudly reading my words, I glanced around the room, only to find my classmates bearing big smiles

on their faces and tears in their eyes. Confused, I glanced toward my stone-faced teacher. Having no

choice, I slowly raised the report I had slaved over, hoping to hide myself. "What could be causing

everyone to act this way?"

     Quickly, I flashed back to the day Miss Lancelot gave me the task. This was the first real talk I

received in my new school. It seemed simple: go on the Internet and find information about a man named

George Washington. Since my idea of history came from an ancient teacher in my home country, I had

never heard of that name before. As I searched the name of this fellow, it became evident that there were

two people bearing the same name who looked completely different! One invented hundreds of uses for

peanuts, while the other led some sort of army across America. I stared at the screen, wondering which

one my teacher meant. I called my grandfather for a golden piece of advice; flip (掷) a coin. Heads-the

commander, and tails-the peanuts guy. Ah! Tails, my report would be about the great man who invented

peanut butter, George Washington Carver.

     Weeks later, standing before this unfriendly mass, I was totally lost. Oh well, I lowered the paper and

sat down at my desk, burning to find out what I had done wrong. As a classmate began his report, it all

became clear, "My report is on George Washington, the man who started the American Revolution." The whole world became quite! How could I know that she meant that George Washington?

     Obviously, my grade was awful. Heartbroken but fearless, I decided to turn this around. I talked to

Miss Lancelot, but she insisted: No re-dos; no new grade. I felt that the punishment was not justified, and

I believed I deserved a second chance. Consequently, I threw myself heartily into my work for the rest

of the school year. Ten months later, that chance unfolded as I found myself sitting in the headmaster's

office with my grandfather, now having an entirely different conversation. I smiled and flashed back to the

embarrassing moment at the beginning of the year as the headmaster informed me of my option to skip

the sixth grade. Justice is sweet!

1. What did the author's classmates think about his report?

A. Controversial.                  

B. Ridiculous.

C. Boring.                        

D. Puzzling.

2. Why was the author confused about the task?

A. He was unfamiliar with American history.

B. He followed the advice and flipped a coin.

C. He forgot his teacher's instruction.

D. He was new at the school.

3. The underlined word "burning" in Para. 3 probably means _______.

A. annoyed                      

B. ashamed

C. ready                        

D. eager

4. In the end, the author turned things around _______.

A. by redoing his task

B. through his own efforts

C. with the help of his grandfather

D. under the guidance of his headmaster