硬盘安装在机箱内,一般情况下我们看不到它,所以硬盘属于内存储器。

题型:判断题

问题:

硬盘安装在机箱内,一般情况下我们看不到它,所以硬盘属于内存储器。

考点:初中信息技术初中信息技术题库
题型:判断题

阅读理解。

     Experts say that students usually need eight to ten hours' sleep at night,

but most. Chinese students do not get enough sleep. Some Chinese parents

are usually glad to see their children studying late.

     They will think their children work very hard, but not all parents are

happy about this.  Once a mother told us that every morning her 10-year-old

boy put up one finger with his eyes still closed, begging(请求) for one more

minute to sleep. Like thousands of student " early birds"  in China, he has to

get up before six every morning.

     A report shows that without a good night sleep, students seem to be weaker (虚弱) than they should be. Many students have fallen asleep during class at

one time or another. Too much homework is not the only reason why students

stay up late. Some watch TV or play the computer

games late into the night.

     Experts have ever said that the students should develop good study habits.

So some cleverstudents never study late, they are able to work well in class.

1. The l0-year-old boy begged for one more minute to sleep because_________.

A. he didn't have enough sleep

B. it wasn't time for him to get up

C. he didn't want to go to school

D. he wanted his mother to wake him up

2. In this passage we know if students don't get enough sleep, they may _______.

A. become too weak to sleep

B. not work well in class

C. go to bed early

D. be weak in English

3. In this passage "early birds" means "persons who__________"

A. get up early

B. get up late

C. sleep less

D. don't want to sleep

4. "Stay up late" here means "__________".

A. study late

B. watch TV late

C. not go to bed until late

D. stay outside

5. According to the passage, which of the following is RICHT?

A. If you want to study better, you must work hard at night.

B. Sleeping less means working hard.

C. Some clever students are able to work well in class because they have

good study habits.

D. Students don't have enough sleep because they have lots of homework to do.

题型:判断题

发现学习有利于刺激学生的()、布鲁纳将此称为的“学习内部动机的原型”。

题型:判断题

有下列四个化学反应:

A.2HgO=2Hg↑+O2↑ B.2H2O=2H2↑+O2

C.2HClO=2HCl+O2↑ D.CaCO3=CaO+CO2

其中可用如图模型来表示的化学反应是_______;(填字母代号)

在你选中的化学反应中若“○”所表示的原子,在化学式中该元素的化合价为+1价,则“●”所表示的原子,在反应物化学式中该元素的化合价为__________价。

题型:判断题

胸部侧位标准片所见,描述错误的是()

A.无组织遮盖部分呈漆黑

B.胸骨两侧缘重合成侧位

C.第4胸椎以下椎体清晰可见

D.升主动脉与降主动脉重叠良好

E.心脏及大血管影边缘清晰锐利

题型:判断题

人们观看工件时在视线周围()范围内看起来比较清楚。

A.60

B.45

C.30

D.15

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