常见的卵巢上皮性肿瘤有哪些

题型:问答题

问题:

常见的卵巢上皮性肿瘤有哪些

考点:医院评审三基考试妇产科学基础知识三基培训考试妇产科学女性生殖器肿瘤
题型:问答题
将4个数a,b,c,d排成2行、2列,两边各加一条竖直线记成
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=ad-bc,上述记号就叫做2阶行列式.若
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x+11-x
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=6,则x=______.
题型:问答题

American English has so many ______ because the American people have come from all over the world. [ ]

A. grammar

B. vocabulary

C. pronunciations

D. dialects

题型:问答题

如图是桃花的结构请据图回答下列问题

(1)一朵花的主要结构是______,包括______和______ 两部分.

(2)雄蕊由______(填序号)组成,雌蕊由______(填序号)组成,发育成[11]______的是[9]______;将来发育成[12]______的是[10]______.

题型:问答题

物体在万有引力场中具有的势能叫做引力势能.若取两物体相距无穷远时的引力势能为零,一个质量为m0的质点距质量为M0的引力源中心为r0时,其万有引力势能EP=-

GM0m0
r0
(式中G为引力常数).一颗质量为m的人造地球卫星以半径为r1圆形轨道环绕地球飞行,已知地球的质量为M,要使此卫星绕地球做匀速圆周运动的轨道半径增大为r2,则卫星上的发动机所消耗的最小能量为(  )

A.E=GMm(

1
r1
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r2

B.E=

GMm
2
(
1
r1
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1
r2
)

C.E=

GMm
3
(
1
r1
-
1
r2
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D.E=

2GMm
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r2
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1
r1
)

题型:问答题

Dear editor,

I am writing to ask what has happened to our young people.They are not as polite or hard-working as my generation(一代人I will give you two examples.

Last Friday, I got on the underground at 9:15 a.m. It was very crowded so there was no free seat.There were some boys sitting on the seats near me.I didn't know why they were not at school.They were talking and laughing loudly. It was difficult for me to read my newspaper with all the noise.At the next stop, a pregnant(怀孕的)woman and her daughter got on with lots of shopping bags.I expected the boys to let them sit down.They saw the woman but they did nothing.I had to ask them to give the woman and her daughter seats.   They did so but gave me a rude look.

Last Saturday, I had dinner with my friend’s family.I was glad to see his children, who I hadn't seen for ten years.During the dinner, I started talking about world politics with the children.It soon became clear that they didn't know much about it.They couldn't tell me the name of the King of Spain or President of Italy.All they knew about was the Internet or which singers were the most beautiful.In my days, students knew the kings, the queens and the presidents of every country in Europe.

I worry about the future of Germany.How could these young people become good workers and parents? They sit around McDonald's after school instead of going to the library like I did at their age.Maybe they have too much money.Perhaps some readers can give us some ideas about what to do with this “lost generation”.

Yours sincerely,

Frantz Vogts.

小题1:Mr. Vogts writes this letter to the editor to _______.

A.show how rude the boys were

B.express his worry about his friend’s children’s future

C.show how lazy young people nowadays are

D.complain the way some young people acted小题2:When Mr Vogts met the boys on the underground , he_______.

A.knew there was no hope for him to get a seat

B.felt he would be in trouble

C.thought they should have been studying instead of staying there

D.expected that they would get off at the next stop小题3:Mr Vogts was disappointed at the dinner because _______.

A.he was not politely treated

B.he had different opinions on the world politics from his friend

C.the children cared more about the Internet than he

D.the children did not know much about world politics小题4:By saying “lost generation”, Mr Vogts refers to ________.

A.the fact that he is angry with young people today

B.the people at his age

C.his worry about these young people

D.today’s young people

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