患者女性,31岁,孕26周, * * 流血3天,色暗红,伴轻微腹痛。超声检查显示:胎盘位于

题型:单项选择题 A3型题

问题:

患者女性,31岁,孕26周, * * 流血3天,色暗红,伴轻微腹痛。超声检查显示:胎盘位于后壁,胎盘下缘处胎盘与宫壁间可见37mm×21mm高低回声不均匀区,其内未见明显血流信号

关于胎盘早剥的主要病理变化及临床严重的并发症,正确的是()。

A.胎盘底蜕膜出血

B.形成的血肿使胎盘与壁蜕膜分离

C.显性胎盘出血严重时可致子宫卒中

D.胎盘剥离达1/5~1/4时可致胎儿死亡

E.病变开始于包蜕膜

考点:超声波医学与技术(主管技师)妇产科妇产科题库
题型:单项选择题 A3型题
(1)用“<”或“>”填空:
4
______4;
1
100
______
1
100

6.25______
6.25

2+
2
______
2+
2

π-3
______π-3;
(2)在(1)的条件下,请你将上述的5个不等式分成两类,并说明每类不等式的特征.
题型:单项选择题 A3型题

血平板上形成双溶血环的细菌是()

A.产气荚膜梭菌

B.肉毒梭菌

C.炭疽芽孢杆菌

D.白喉棒状杆菌

E.鼠疫耶氏菌

题型:单项选择题 A3型题

纤维蛋白及纤维蛋白原的降解产物有()

A.X碎片

B.X、Y碎片

C.X、Y、D碎片

D.X、Y、D、E碎片

E.D、E碎片

题型:单项选择题 A3型题

阅读理解

     Both my parents came from towns in Mexico.Then I was born in El Paso,  Texas,  and when I was

four,  my family moved to a housing project in East Los Angeles.

     Even though we struggled to make ends meet,  my parents stressed to me and my four brothers and

sisters how fortunate we were to live in a great country with limitless opportunities.They influenced us

with the concepts of family,  faith and nationalism.

     I got my first real job when I was ten.My dad injured his back working in a cardboardbox factory

and was retrained as a hairstylist.He rented space in a little shopping mall and gave his shop the fancy

name of Mr Ben's Coiffure.

     The owner of the shopping center gave Dad a discount on his rent for cleaning the parking lot three

nights a week,  which meant getting up at 3 a. m..To pick up rubbish,  Dad used a little machine that

looked like a lawn mower.Mom and I emptied garbage cans and picked up litter by hand.It took two

to three hours to clean the lot.I'd sleep in the car on the way home.

     I did this for two years,  but the lessons I learned have lasted a lifetime.I acquired discipline and a

strong work ethic (道德),  and learned at an early age the importance of balancing life's competing

interests-in my case,  school,  homework and a job.This really helped during my senior year of a high

school,  when I worked 40 hours a week flipping burgers at a fastfood joint while taking a full load of

college preparation courses.

     The hard work paid off.I attended the US Military Academy and went on to receive graduate

degrees in law and business from Harvard.Later,  I joined a big Los Angeles law firm and was elected

to the California State Assembly (州议会). In these jobs and in everything else I've done,  I have never

forgotten those nights in the parking lot.The experience taught me that there is dignity in all work and that

if people are working to provide for themselves and their families that is something we should honor.

1. Before my father got injured,  we________.

A. didn't like living in the USA

B. lived a poor but happy life

C. were lucky to move to the USA

D. had many ways to make money

2. When he recovered,  to make a living my father________.

A. ran a small shopping mall

B. did a parttime job

C. worked as a barber

D. became a street cleaner

3. Working in the parking lot for two years had taught me________.

A. how to obey school discipline

B. how to do two things well at a time

C. that discipline and work were of equal value

D. that I must do as many things as possible at a time

4. The author tells us in the last paragraph that we should be proud of those who________.

A. have done all kinds of jobs

B. are cleaning the parking lot

C. have achieved a lot in their lives

D. are bearing their responsibilities

题型:单项选择题 A3型题

以下哪一种抑制剂只能抑制真核生物细胞质的蛋白质合成( )

A.氯霉素
B.红霉素
C.放线菌酮
D.嘌呤霉素
E.四环素

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