任何控件都有的属性是( )。A. 数据绑定控件 B. ActiveX控件 C.

题型:单项选择题

问题:

任何控件都有的属性是( )。

A. 数据绑定控件

B. ActiveX控件

C. 自动化管理器

D. 报表控件

考点:计算机等级考试VISUALBASIC计算机二级(VB)47
题型:单项选择题

使用随机数表选取样本时,需要确定选号的()

A.范围,即所选号码是否落入抽样单位的编号范围之内

B.路线,即按照何种方向作为选取样本的顺序

C.位数,即选用随机数表中每个数的哪几位与抽样单位相对应

D.起点,即以随机数表中的哪个数作为所选样本的首个号码

题型:单项选择题

由于地球公转的影响,北半球夏半年的日数______(“〉”或“=”或“〈”)冬半年的日数。

题型:单项选择题

Listening to music can help me focus better. Since I discovered it two years ago, I’ve used music to get through boring work or to focus creatively. I’ve found that it can make even the dullest jobs enjoyable and help clear mental blocks to creativity.

I first noticed the good effects of music while playing video games. It was a few days before Christmas in 2005 and I was playing online video games. My parents had just given me a new MP3, so I decided to listen to music through the headphones while I played. After a few minutes I noticed a great change in my style of play. I was playing more naturally. The music relaxed me, and, to a certain extent, distracted me from the game, allowing my subconscious (潜意识的) talent to come through. The music also helped me block out the outside world. With those headphones on I was like a machine, moving from one task to the next without unnecessary thoughts or actions.

Music can also have a great effect on mood. If I’m in a bad mood at work, I’ll listen to some of Bob Marley’s and get down to business. It always takes my mind off what I’m doing and makes me a happier person. The same is true for classic rock. One summer, I did a boring job collecting bottle openers by hand. Without a radio playing classic rock in the background, I would have hated life.

Listening to music with relaxing rhythms and a positive message helps you forget your work and think happy thoughts. But the results you see will depend heavily on your personal tastes. Experiment with the types of music you listen to during certain tasks. By trial and error you’ll finally discover your best choice. I’m always looking for new concentration aids, so I’d love to know what type of music works best for me.

小题1: We can infer that the passage was written in __________.

A.2005

B.2006

C.2007

D.2008小题2:The author first discovered the effects of music __________.

A.from his parents

B.by chance

C.at work

D.when he was a child小题3:Which of the following statements is NOT an effect of music for the author?

A.It helps him block out the outside world.

B.It arouses his subconscious talent.

C.It helps his mind relax.

D.It makes him work without any thought.小题4:The author mentions the experience of collecting bottle openers in Paragraph 3 to ________.

A.tell us that life is dull

B.prove that music affects mood

C.tell us how to seek happiness

D.tell us bad mood can affect work小题5:In order to get the greatest effect of music, you are advised to ________.

A.listen to some of Bob Marley’s

B.only choose relaxing music

C.test all kinds of music

D.listen to classic rock

题型:单项选择题

粪中排出的氮包括().

A、食物氮

B、未能消化吸收的蛋白质

C、脱落的肠粘膜细胞

D、肠道细菌

题型:单项选择题

梅毒性主动脉炎时的病变应为()

A.病变主要累及腹主动脉

B.内膜表面粥样斑块

C.常形成夹层动脉瘤

D.主动脉瓣膜正常

E.左心室肥大和扩张

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