儿童及青年的卵巢瘤,应特别引起注意,因为A.有碍生长发育B.不易与腹内疾病鉴别C.约

题型:单项选择题

问题:

儿童及青年的卵巢瘤,应特别引起注意,因为

A.有碍生长发育
B.不易与腹内疾病鉴别
C.约50%为恶性
D.常导致营养不良
E.可致两性畸形

考点:妇产科(医学高级)妇产科
题型:单项选择题

阅读理解。

     In Japan many old people don't live with their children. They have no one to talk to. Their life is very

boring. Now a new robot (机器人) comes. It has two big eyes and ears. It looks like a white teddy bear.

There are four cameras and a sensor (传感器) in the robot. It can draw planes. It can also use the

Internet (网络) to find some pictures and draw them down. It is a good friend for the old. It will help them a lot and it can chat (聊天) with them. It can answer some questions,too. Sometimes it also helps them to

find glasses. It doesn't mind listening to the same stories again and again. Lots of children also like it. They can play with it when their parents go to work.

1. In Japan many old people _____ talk with others.

A. usually  

B. often    

C. seldom  

D. always

2. What do many old people think of their lives in Japan?

A. Busy.  

B. Boring.  

C. Interesting.  

D. Colorful.

3. What color is this new robot?

A. White.  

B. Green.  

C. Black.  

D. Brown.

4. How many cameras does the robot have?    

A. 2.  

B. 3.  

C. 4.  

D. 5.   

5. What things can't the robot do?    

A. Chat with others.   

B. Draw pictures.     

C. Use the Internet.     

D. Do housework.    

题型:单项选择题

如图所示,光滑的曲面轨道的水平出口跟停在光滑水平面上的平板小车的上表面相平,质量为m的小滑块从光滑轨道上某处由静止开始滑下并滑下平板小车,使得小车在光滑水平面上滑动.已知小滑块从光滑轨道上高度为H的位置由静止开始滑下,最终停到板面上的Q点.若平板小车的质量为3m.用g表示本地的重力加速度大小,求:

(1)小滑块到达轨道底端时的速度大小v0

(2)小滑块滑上小车后,平板小车可达到的最大速度V

(3)该过程系统产生的总热量Q

题型:单项选择题

2010年10月9日,第16届亚洲运动会火种在北京居庸关长城北烽火台成功采集.亚运会火炬“潮流”采用丙烷作为燃料,燃烧后的产物为水和二氧化碳,更加低碳、环保、安全.NA表示阿伏加德罗常数,下列有关丙烷的叙述正确的是(  )

A.11.2L丙烷中含有的分子数为0.5NA

B.丙烷的摩尔质量是44g

C.常温常压下,相同体积的丙烷和二氧化碳的物质的量相等

D.2.2g丙烷分子中所含C-H键的个数为0.5NA

题型:单项选择题

在建设工程竣工决算中,不计入新增固定资产价值的有()。

A.已经投入生产或交付使用的建筑安装工程造价

B.勘察设计费

C.施工机构迁移费

D.其他在建的建筑安装工程造价

题型:单项选择题

患者男性,15岁,因“右耳听力减退,闭塞感10天”来诊。近期有感冒及外伤史,专科检查见鼓膜内陷呈油黄色。

不宜应用的药物是()

A.抗生素

B.糖皮质激素

C.黏液促排剂

D.抗组胺药物

E.鼻腔血管收缩剂

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