物质的溶解度必须是在一定温度下才有意义。

题型:判断题

问题:

物质的溶解度必须是在一定温度下才有意义。

考点:汽油加氢装置操作工考试初级汽油加氢装置操作工考试初级汽油加氢装置操作工考试题库
题型:判断题

AS2O3细粉状的比粗粉状的毒性大,其毒效应受到哪种因素影响()

A.脂/水分配系数

B.电离度

C.挥发度和蒸气压

D.分散度

E.纯度

题型:判断题

μ代表

A.变量值间呈倍数关系的偏态分布
B.表达同质计量资料的对称分布
C.偏态分布资料或末端无界的资料,或频数分布不明资料
D.表达同质量计量资料的偏态、分布
E.变量值间无倍数关系的正态分布

题型:判断题

血小板减少性紫癜()

A.四肢对称性紫癜伴有关节痛及腹痛、血尿

B.紫癜伴有黄疸

C.自幼有轻伤后出血不止,有关节肿痛或畸形者

D.紫癜伴有广泛性出血者

E.紫癜伴脾大

题型:判断题

周末学校组织大扫除,九年级二班的王老师向同学们布置任务后就匆匆离开了教室。过了会儿,站在课桌上擦玻璃的小苗不小心摔了下来。造成左臂骨折。后小苗家长提起诉讼,人民法院最终判决学校赔偿小苗2万多元。这一案例表明(   )

A.学校对小苗的学校保护没有到位

B.国家通过立法保障公民的权利得以实现

C.法律维护了小苗的合法权利

D.诉讼是维护公民权利的有效途径

题型:判断题

阅读理解。

     请阅读下面一篇文章,并按照要求匹配信息。

      It doesn't come as a surprise to you to realize that it makes no difference what you read

or study if you can't remember it. You just waste your valuable time. 1  One dependable

aid that does help you remember what you study is to have a specific purpose or reason for

reading.

     Why does a clerk in a store go away when your reply to her offer to help is, "No, thank

you.I'm just looking."? Both you and she know that if you aren't sure what you want, you are

not likely to find it.But suppose you say instead, "Yes, thank you.I want a pair of sun glasses."

She says, "Right this way, please".

      2  If you choose a book, "just looking" for nothing in particular, you are likely to get just

that-nothing.But if you do know what you want, you are almost sure to get it.Your reasons will

vary; they will include reading or studying "to find out more about", "to understand the reasons

for" and "to find out how".Before you start to study, you say to yourself something like

this, "I want to know why Stephen Vincent Benet happened to write about America".Because

you know why you are reading or studying, you relate the information to your purpose and

remember it better.

     4 At least two important processes go on at the same time.As you read, you take in ideas

rapidly and accurately.But at the same time you express your own ideas to yourself as you react

to what you read. You have a kind of mental conversation with the author.

     This additional process of thinking about what you read includes evaluating it, relating it to

what you already know, and using it for your own purposes.  5  One part of critical reading,

as you have discovered, is distinguishing between facts and opinions.Facts can be checked

by evidence. Opinions are one's own personal reactions.Another part of critical reading is

judging sources.Still another part is drawing accurate inferences.

     A. Maybe you have already discovered some clever ways to keep yourself from forgetting.

     B. It is important for students to have a positive attitude to their study.

     C. You remember better when you know what you' re reading.

     D. In other words, a good reader is a critical reader.

     E. It's quite the same with your studying.

     F. Reading is not one single activity.

     G. This is the way it works.        

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