某显示器分辨率为1024×768,则全屏幕像素个数为______。

题型:填空题

问题:

某显示器分辨率为1024×768,则全屏幕像素个数为______。

考点:计算机等级考试PC技术三级PC技术笔试
题型:填空题
广东省汕头市日前提出,要提升市民素质和城市文明程度,促进经济发展有大的提速,努力实现“幸福汕头”的共建共享.现随机抽取50位市民,对他们的幸福指数进行统计分析,得到如下分布表:
幸福级别非常幸福幸福不知道不幸福
幸福指数(分)9060300
人数(个)192173
(I)求这50位市民幸福指数的数学期望(即平均值);
(11)以这50人为样本的幸福指数来估计全市市民的总体幸福指数,若从全市市民(人数很多)任选3人,记ξ表示抽到幸福级别为“非常幸福或幸福”市民人数.求ξ的分布列;
(III)从这50位市民中,先随机选一个人.记他的幸福指数为m,然后再随机选另一个人,记他的幸福指数为n,求n<m+60的概率P.
题型:填空题

[a][b]两处,恰当的措辞是( )

A.庄重典雅 出神入化

B.出神入化 庄重典雅

C.尽逞其妙 随心所欲

D.随心所欲 尽逞其妙

题型:填空题

How can we measure animals’ emotions? A new study of animal’s emotions suggests that, as in humans, emotions can tell animals about how dangerous their world is, and guide the choices that they make. The article of the study by Bristol University’s professor Mike Mendl was published online.

An animal living in an environment where it is often threatened by predators(捕食者)will develop a negative emotion or “mood”, such as anxiety. However, one in an environment with plenty of opportunities to get resources for survival will be in a more positive mood state.

The researchers say that these emotional states not only show the animal’s experiences, but also help it decide how to make choices, especially in unclear situations. This could have good or bad results. An animal in a negative mood state will make a safety-first with a “pessimistic” response to an unclear event. For example, it considers a noise in the grass as a signal of the predator. At the same time, an animal in a positive mood state will benefit from a more “optimistic” response. It considers the noise as a signal of prey(猎物).

Professor Mike Mendl, head of the Animal Welfare and Behavior Research Group at Bristol University’s School of Clinical Veterinary Science said, “ We can use “optimistic” or “pessimistic”decision-making as a symbol of an animal’s emotional state. Recent studies by our group and others suggest that this is a meritorious new approach to studying a variety of animal species.”

“Public interest in animal welfare remains high, with widespread concern about the way in which animals are treated, used and included in society. To understand how animals should be treated, we need to better understand their emotional lives,” Mike Mendl said. The researchers believe Mike Mendl’s study can help them to better understand and assess an animal’s emotions.

小题1:When an animal is in a negative mood state, _______.

A.its response to an unclear event is pessimistic

B.it will pay little attention to an unclear event

C.it is easy for it to make right decisions

D.it has more opportunities to get food小题2:The underlined word “meritorious” in Paragraph 4 can be replaced by “_______”.

A.valuable

B.useless

C.fashionable

D.hopeless小题3:We can infer from the passage that ________.

A.the animals with positive emotions live longer

B.there is no way to assess an animal’s emotions

C.few people care about animal welfare nowadays

D.the environment can influence animal’s emotions小题4:Mike Mendl advised people to better understand animal’s emotions in order to _____.

A.tell people to build more protected areas for animals

B.explain animals should be regarded as people’s friends

C.raise people’s interest in studying animals

D.make people know how to treat animals properly小题5:What would be the best title for the passage?

A.Different kinds of Animals’ Emotions

B.Emotions Helps Animals to Make Choice

C.The Living Environment of Wild Animals

D.The Best Way to Measure Animals’ Emotions

题型:填空题

蓄电池室内温度在()之间。

A、5~10℃

B、10~30℃

C、不高于50℃

D、-10~0℃

题型:填空题

在一个类中可以对一个操作符进行( )重载

A.1种

B.2种

C.3种

D.多种

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