如下是一个稀疏矩阵的三元组法存储表示和基于此表示所得出的相关叙述 I. 该稀疏矩

题型:单项选择题

问题:

如下是一个稀疏矩阵的三元组法存储表示和基于此表示所得出的相关叙述

I. 该稀疏矩阵有5行 II. 该稀疏矩阵有4列 III. 该稀疏矩阵有6个非0元素 这些叙述中______是正确的。

A.仅I

B.I和II

C.仅III

D.全部

考点:计算机等级考试数据库技术计算机三级(数据库技术)36
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Taking good notes is a time-saving skill that will help you to become a better student in several ways58  Second, your notes are excellent materials to refer to when you are studying for a test. Third, note-taking offers variety to your study time and helps you to hold your interest.

You will want to take notes during classroom discussions and while reading a textbook or doing research for a report.59 .Whenever or however you take notes, keep in mind that note-taking is a selective process.60

The following methods may work best for you.

●Read the text quickly to find the main facts and ideas in it.

●Carefully read the text and watch for words that can show main points and supporting facts.

● Write your notes in your own words.

● 61

● Note any questions or ideas you may have about what was said or written.

As you take notes, you may want to use your own shorthand(速记). When you do, be sure that you understand your symbols and that you use them all the time.62

A.Use words, not complete sentences.

B.There are three practical note-taking methods.

C.You must write your notes on separate paper.

D.Otherwise, you may not be able to read your notes later.E. you will also want to develop your own method for taking notes.

F. That means you must first decide what is important enough to include in your notes.

G. First, the simple act of writing something down makes it easier for you to understand and remember it.

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小儿脾虚泻的首选方剂是()

A.保和丸

B.藿香正气丸

C.葛根黄芩黄连汤合六一散

D.参苓白术散

E.附子理中汤合四神丸

题型:单项选择题

决定人患白化病的基因(a)是隐性基因,正常肤色的基因是显性基因.现有一对夫妇,父亲的肤色正常,母亲是白化病患者,他们生下一个患白化病的孩子.这对夫妇及孩子的基因型分别是(  )

A.父亲AA、母亲Aa、孩子aa

B.父亲Aa、母亲Aa、孩子Aa

C.父亲Aa、母亲aa、孩子aa

D.父亲AA、母亲aa、孩子aa

题型:单项选择题

品牌-产品矩阵有助于明确公司出售的产品和品牌范围,但前提是假定对每个产品仅赋予一个品牌名称。

题型:单项选择题

对清醒患者的急救方法不正确的步骤()

A、如果患者不能说话、咳嗽,仅能点头表示“是”的时候,则不用立即救治

B、确定患者发生气道异物阻塞的程度,了解患者能否咳嗽或说话

C、如患者有通气,能用力咳嗽,但咳嗽停止时出现喘息声,应尽量鼓励患者用力咳嗽,并让患者弯腰,拍打患者背部,协助患者排出异物

D、如患者神志清醒,能站立或坐稳,急救人员应采取上腹部冲击法或胸部冲击法解救

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