80gFe2O3与 ______gFe3O4的含铁量相等,要使CO2与SO2含有

题型:填空题

问题:

80gFe2O3与 ______gFe3O4的含铁量相等,要使CO2与SO2含有相同质量的氧元素,两种物质的质量比是 ______.

考点:物质组成元素的质量分数相对分子质量物质组成元素的质量比
题型:填空题

下表资料是急性白血病经化疗达缓解者的生存情况。

下列有关生存概率与生存率的描述错误的是()

A.生存率即累积生存概率

B.生存概率等于生存率

C.如有删除数据,各分时段的生存概率相乘可得到生存率

D.3年生存率指观察对象活满3年的可能性

E.年生存概率指年初尚存人口活满1年的可能性

题型:填空题

男性,30岁。高处坠落造成腰椎骨折致截瘫1年。因长期卧床发生骶尾部及大腿褥疮。查体:精神较差,消瘦,贫血貌。骶尾部溃疡创面呈椭圆形,面积9cm×6cm大小,溃烂状,基底为肉芽创面,渗出物较多,骶骨部分骨质外露,创周皮肤发暗变硬。左大腿股骨大转子处有一3cm×3cm溃疡创面,肉芽组织水肿老化,渗出物不多。

经全身支持治疗、抗感染、局部换药等处理后,创面较新鲜干净,分泌物减少,准备采取骶部清创手术。下列手术方案中,不正确的是()。

A.清除溃疡基底部坏死组织以及溃疡周缘部分发黑的间生组织

B.凿去外露骨骼的隆起部分,深入到关节腔内

C.清创后用刃厚皮片移植覆盖创面

D.创面直接拉拢缝合

E.需保持皮瓣一定的厚度,必要时应用肌皮瓣修复

F.皮瓣转移时形成的皱褶需手术展平

题型:填空题

When I was a kid, I used to spend hours listening to Adam Carolla and Dr. Drew Pinsky on their Sunday night radio show Loveline. I listened so often that I began to use one of their well-known phrases—“good times”—in my daily conversations. Scientists have a name for this phenomenon: behavioral mimicry.

You’ve probably experienced this before: after spending enough time with another person, you might start to pick up on his or her behavior or speech habits. You might even start to develop your friend’s habits without realizing it. There is a large body of literature concerning this sort of phenomenon, and it regularly happens for everything from body postures to accents to drink patterns. For example, one study found that young adults were more likely to drink their drink directly after their same-sex drinking partners, than for the two individuals to drink at their own paces.

And the effect isn’t limited to real-life face-to-face activities. Another study found that the same you-drink-then-I-drink pattern held even when watching a movie! In other words, people were more likely to take a drink of their drinks in a theater after watching the actors on the screen enjoy a drink. At least I don’t feel so strange anymore, having picked up on Adam Carolla’s “good times”.

New research published today in the journal PLOS ONE indicates that the same sort of behavioral mimicry is responsible for social eating, at least among university-age women of normal weight. That’s right: the young women were more likely to adjust their eating according to the eating pace of their same-sex dining companion.

As with most experiments, these results raise a whole new set of questions. Still, the finding that behavioral mimicry may at least partly account for eating behavior is important, and has real effects on health. The researchers note that “as long as people don’t fully recognize such important influences on intake, it will be difficult to make healthy food choices and keep a healthy diet, especially when people are exposed to the eating behavior of others”.

小题1:The author takes his own example of using “good times” to _________.

A.express his love for radio shows

B.prove the popularity of the show

C.show the influence of the hosts’ words

D.introduce the topic of the passage小题2:The underlined word “mimicry” in Paragraph 1 is closest in meaning to _________.

A.copying

B.adjusting

C.recognition

D.observation小题3:Which of the following is NOT an example of behavioral mimicry?

A.A boy eats his popcorn after watching the actor eat.

B.A boy buys a Nike shirt when he finds his desk-mate has one.

C.A girl unconsciously sits straight just as others do.

D.A girl takes on the Yorkshire accent after a month’s stay.小题4:It can be inferred from the last paragraph that _________.

A.behavioral mimicry is beneficial to our health

B.behavioral mimicry decides our eating behavior

C.there are doubts on the research results

D.there are people always exposed to bad eating habits小题5:What is probably the author’s purpose of writing this passage?

A.To draw readers’ attention to popular radio shows.

B.To introduce behavioral mimicry and its influence.

C.To appeal to readers not to fall into others’ habits.

D.To advocate healthy food choices among readers.

题型:填空题

在以价格为区分的各品类下可以从消费目的的维度再继续横向细分成送礼型、自吸型、()、交际型。

A.消费型

B.购买型

C.婚庆型

D.身份象征型

题型:填空题

儿童较少发生扁桃体周脓肿是因为()

A.儿童对细菌的免疫力较强 

B.儿童扁桃体被膜较厚且致密 

C.儿童扁桃体隐窝呈裂隙状,分支少,且表浅 

D.儿童患慢性扁桃体炎者较少 

E.儿童较少发生急性扁桃体炎

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